426666988044 has 72 divisors (see below), whose sum is σ = 1177358342160. Its totient is φ = 129206016000.

The previous prime is 426666988031. The next prime is 426666988051. The reversal of 426666988044 is 440889666624.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227844 + ... + 951444.

Almost surely, 2^426666988044 is an apocalyptic number.

426666988044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

426666988044 is an abundant number, since it is smaller than the sum of its proper divisors (750691354116).

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

426666988044 is a wasteful number, since it uses less digits than its factorization.

426666988044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725111 (or 725106 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 63.

The spelling of 426666988044 in words is "four hundred twenty-six billion, six hundred sixty-six million, nine hundred eighty-eight thousand, forty-four".