406628337564 has 54 divisors (see below), whose sum is σ = 1042425709416. Its totient is φ = 133623131040.

The previous prime is 406628337547. The next prime is 406628337587. The reversal of 406628337564 is 465733826604.

406628337564 is a `hidden beast` number, since 4 + 0 + 6 + 628 + 3 + 3 + 7 + 5 + 6 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 406628337564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 32232522 + ... + 32245134.

It is an arithmetic number, because the mean of its divisors is an integer number (19304179804).

Almost surely, 2^406628337564 is an apocalyptic number.

It is an amenable number.

406628337564 is an abundant number, since it is smaller than the sum of its proper divisors (635797371852).

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

406628337564 is an equidigital number, since it uses as much as digits as its factorization.

406628337564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25307 (or 12689 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 54.

The spelling of 406628337564 in words is "four hundred six billion, six hundred twenty-eight million, three hundred thirty-seven thousand, five hundred sixty-four".