1397420760960 has 576 divisors, whose sum is σ = 5821231918320. Its totient is φ = 319408717824.

The previous prime is 1397420760929. The next prime is 1397420761021. The reversal of 1397420760960 is 690670247931.

It is a happy number.

1397420760960 is a `hidden beast` number, since 1 + 3 + 9 + 7 + 4 + 20 + 7 + 609 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1397420760897 and 1397420760906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7528792 + ... + 7712168.

Almost surely, 2^{1397420760960} is an apocalyptic number.

1397420760960 is a gapful number since it is divisible by the number (10) 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 1397420760960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2910615959160).

1397420760960 is an abundant number, since it is smaller than the sum of its proper divisors (4423811157360).

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

1397420760960 is an equidigital number, since it uses as much as digits as its factorization.

1397420760960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183425 (or 183394 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The spelling of 1397420760960 in words is "one trillion, three hundred ninety-seven billion, four hundred twenty million, seven hundred sixty thousand, nine hundred sixty".