397699575585 has 32 divisors (see below), whose sum is σ = 715061184768. Its totient is φ = 187277925120.

The previous prime is 397699575563. The next prime is 397699575617. The reversal of 397699575585 is 585575996793.

It is not a de Polignac number, because 397699575585 - 2¹⁰ = 397699574561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 397699575585.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44332146 + ... + 44341115.

It is an arithmetic number, because the mean of its divisors is an integer number (22345662024).

Almost surely, 2^397699575585 is an apocalyptic number.

It is an amenable number.

397699575585 is a deficient number, since it is larger than the sum of its proper divisors (317361609183).

397699575585 is a wasteful number, since it uses less digits than its factorization.

397699575585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88673305.

The product of its digits is 3214890000, while the sum is 78.

The spelling of 397699575585 in words is "three hundred ninety-seven billion, six hundred ninety-nine million, five hundred seventy-five thousand, five hundred eighty-five".