426643346624 has 56 divisors (see below), whose sum is σ = 927098016768. Its totient is φ = 193191338240.

The previous prime is 426643346567. The next prime is 426643346669.

426643346624 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×426643346624² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 966992 + ... + 1337295.

It is an arithmetic number, because the mean of its divisors is an integer number (16555321728).

Almost surely, 2^426643346624 is an apocalyptic number.

426643346624 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

426643346624 is an abundant number, since it is smaller than the sum of its proper divisors (500454670144).

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

426643346624 is a wasteful number, since it uses less digits than its factorization.

426643346624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304573 (or 2304563 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 50.

The spelling of 426643346624 in words is "four hundred twenty-six billion, six hundred forty-three million, three hundred forty-six thousand, six hundred twenty-four".