426636636624 has 160 divisors (see below), whose sum is σ = 1354234454400. Its totient is φ = 127512714240.

The previous prime is 426636636617. The next prime is 426636636653.

426636636624 is a `hidden beast` number, since 4 + 2 + 6 + 6 + 3 + 6 + 6 + 3 + 6 + 624 = 666.

426636636624 is nontrivially palindromic in base 10.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 268039 + ... + 961830.

It is an arithmetic number, because the mean of its divisors is an integer number (8463965340).

Almost surely, 2^426636636624 is an apocalyptic number.

426636636624 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

426636636624 is an abundant number, since it is smaller than the sum of its proper divisors (927597817776).

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

426636636624 is a wasteful number, since it uses less digits than its factorization.

426636636624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229970 (or 1229958 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 54.

The spelling of 426636636624 in words is "four hundred twenty-six billion, six hundred thirty-six million, six hundred thirty-six thousand, six hundred twenty-four".