397256652793 has 32 divisors (see below), whose sum is σ = 537787821312. Its totient is φ = 285738963840.

The previous prime is 397256652781. The next prime is 397256652811.

397256652793 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-397256652793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397256652713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1518796 + ... + 1761037.

It is an arithmetic number, because the mean of its divisors is an integer number (16805869416).

Almost surely, 2^397256652793 is an apocalyptic number.

It is an amenable number.

397256652793 is a deficient number, since it is larger than the sum of its proper divisors (140531168519).

397256652793 is a wasteful number, since it uses less digits than its factorization.

397256652793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279886 (or 3279864 counting only the distinct ones).

The product of its digits is 128595600, while the sum is 64.

The spelling of 397256652793 in words is "three hundred ninety-seven billion, two hundred fifty-six million, six hundred fifty-two thousand, seven hundred ninety-three".