397045092487680 has 5120 divisors, whose sum is σ = 1894511703490560. Its totient is φ = 77474101985280.

The previous prime is 397045092487679. The next prime is 397045092487739. The reversal of 397045092487680 is 86784290540793.

397045092487680 is a `hidden beast` number, since 3 + 9 + 7 + 0 + 4 + 50 + 92 + 487 + 6 + 8 + 0 = 666.

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 = 397045092487599 and 397045092487608.

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 363261749214 + ... + 363261750306.

It is an arithmetic number, because the mean of its divisors is an integer number (370021817088).

Almost surely, 2^{397045092487680} is an apocalyptic number.

397045092487680 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 397045092487680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (947255851745280).

397045092487680 is an abundant number, since it is smaller than the sum of its proper divisors (1497466611002880).

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

397045092487680 is a wasteful number, since it uses less digits than its factorization.

397045092487680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 731566080, while the sum is 72.

The spelling of 397045092487680 in words is "three hundred ninety-seven trillion, forty-five billion, ninety-two million, four hundred eighty-seven thousand, six hundred eighty".