426689618976 has 36 divisors (see below), whose sum is σ = 1213398604782. Its totient is φ = 142229872896.

The previous prime is 426689618939. The next prime is 426689618983. The reversal of 426689618976 is 679816986624.

426689618976 is a `hidden beast` number, since 426 + 68 + 9 + 61 + 89 + 7 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 214054275600 + 212635343376 = 462660^2 + 461124^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 740780301 + ... + 740780876.

Almost surely, 2^426689618976 is an apocalyptic number.

It is an amenable number.

426689618976 is an abundant number, since it is smaller than the sum of its proper divisors (786708985806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426689618976 is a wasteful number, since it uses less digits than its factorization.

426689618976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481561193 (or 1481561182 counting only the distinct ones).

The product of its digits is 376233984, while the sum is 72.

The spelling of 426689618976 in words is "four hundred twenty-six billion, six hundred eighty-nine million, six hundred eighteen thousand, nine hundred seventy-six".