1397652765696 has 792 divisors, whose sum is σ = 4796325765504. Its totient is φ = 402397839360.

The previous prime is 1397652765679. The next prime is 1397652765709. The reversal of 1397652765696 is 6965672567931.

1397652765696 is a `hidden beast` number, since 1 + 3 + 9 + 7 + 6 + 52 + 7 + 6 + 569 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (792).

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

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, 9380219830 + ... + 9380219978.

Almost surely, 2^{1397652765696} is an apocalyptic number.

1397652765696 is a gapful number since it is divisible by the number (16) 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 1397652765696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2398162882752).

1397652765696 is an abundant number, since it is smaller than the sum of its proper divisors (3398672999808).

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

1397652765696 is an equidigital number, since it uses as much as digits as its factorization.

1397652765696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 188 counting only the distinct ones).

The product of its digits is 771573600, while the sum is 72.

The spelling of 1397652765696 in words is "one trillion, three hundred ninety-seven billion, six hundred fifty-two million, seven hundred sixty-five thousand, six hundred ninety-six".