396744615775 has 24 divisors (see below), whose sum is σ = 520937309664. Its totient is φ = 298705305600.

The previous prime is 396744615763. The next prime is 396744615821. The reversal of 396744615775 is 577516447693.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-396744615775 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10347039 + ... + 10385311.

It is an arithmetic number, because the mean of its divisors is an integer number (21705721236).

Almost surely, 2^396744615775 is an apocalyptic number.

396744615775 is a deficient number, since it is larger than the sum of its proper divisors (124192693889).

396744615775 is a wasteful number, since it uses less digits than its factorization.

396744615775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62691 (or 62686 counting only the distinct ones).

The product of its digits is 133358400, while the sum is 64.

The spelling of 396744615775 in words is "three hundred ninety-six billion, seven hundred forty-four million, six hundred fifteen thousand, seven hundred seventy-five".