397879353459 has 24 divisors (see below), whose sum is σ = 658915199072. Its totient is φ = 226633230720.

The previous prime is 397879353341. The next prime is 397879353461. The reversal of 397879353459 is 954353978793.

397879353459 is a `hidden beast` number, since 3 + 9 + 7 + 87 + 9 + 3 + 534 + 5 + 9 = 666.

It is not a de Polignac number, because 397879353459 - 2³² = 393584386163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397879353499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10069012 + ... + 10108449.

Almost surely, 2^397879353459 is an apocalyptic number.

397879353459 is a deficient number, since it is larger than the sum of its proper divisors (261035845613).

397879353459 is a wasteful number, since it uses less digits than its factorization.

397879353459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20177787 (or 20177784 counting only the distinct ones).

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

The spelling of 397879353459 in words is "three hundred ninety-seven billion, eight hundred seventy-nine million, three hundred fifty-three thousand, four hundred fifty-nine".