426512979 has 16 divisors (see below), whose sum is σ = 634115200. Its totient is φ = 283332168.

The previous prime is 426512953. The next prime is 426512993. The reversal of 426512979 is 979215624.

426512979 is a `hidden beast` number, since 42 + 6 + 512 + 97 + 9 = 666.

It is not a de Polignac number, because 426512979 - 2²⁷ = 292295251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426512179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20269 + ... + 35550.

It is an arithmetic number, because the mean of its divisors is an integer number (39632200).

Almost surely, 2^426512979 is an apocalyptic number.

426512979 is a deficient number, since it is larger than the sum of its proper divisors (207602221).

426512979 is a wasteful number, since it uses less digits than its factorization.

426512979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56111 (or 56105 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 426512979 is about 20652.1906586202. The cubic root of 426512979 is about 752.7384212298.

The spelling of 426512979 in words is "four hundred twenty-six million, five hundred twelve thousand, nine hundred seventy-nine".