396957891135 has 128 divisors (see below), whose sum is σ = 725655490560. Its totient is φ = 183830777856.

The previous prime is 396957891107. The next prime is 396957891149. The reversal of 396957891135 is 531198759693.

It is not a de Polignac number, because 396957891135 - 2¹⁰ = 396957890111 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 66971542 + ... + 66977468.

It is an arithmetic number, because the mean of its divisors is an integer number (5669183520).

Almost surely, 2^396957891135 is an apocalyptic number.

396957891135 is a deficient number, since it is larger than the sum of its proper divisors (328697599425).

396957891135 is a wasteful number, since it uses less digits than its factorization.

396957891135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6217.

The product of its digits is 55112400, while the sum is 66.

The spelling of 396957891135 in words is "three hundred ninety-six billion, nine hundred fifty-seven million, eight hundred ninety-one thousand, one hundred thirty-five".