369520981447680 has 1760 divisors, whose sum is σ = 1449328187298816. Its totient is φ = 89751958585344.

The previous prime is 369520981447663. The next prime is 369520981447697. The reversal of 369520981447680 is 86744189025963.

369520981447680 is a `hidden beast` number, since 3 + 6 + 9 + 5 + 20 + 9 + 81 + 447 + 6 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (369520981447663) and next prime (369520981447697).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 369520981447599 and 369520981447608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 16587544702 + ... + 16587566978.

It is a 2-persistent number, because it is pandigital, and so is 2⋅369520981447680 = 739041962895360, but 3⋅369520981447680 = 1108562944343040 is not.

Almost surely, 2^{369520981447680} is an apocalyptic number.

369520981447680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 369520981447680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (724664093649408).

369520981447680 is an abundant number, since it is smaller than the sum of its proper divisors (1079807205851136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

369520981447680 is a wasteful number, since it uses less digits than its factorization.

369520981447680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22421 (or 22394 counting only the distinct ones).

The product of its (nonzero) digits is 627056640, while the sum is 72.

The spelling of 369520981447680 in words is "three hundred sixty-nine trillion, five hundred twenty billion, nine hundred eighty-one million, four hundred forty-seven thousand, six hundred eighty".