405627263964 has 72 divisors (see below), whose sum is σ = 1169160960240. Its totient is φ = 117466716672.

The previous prime is 405627263933. The next prime is 405627263983. The reversal of 405627263964 is 469362726504.

405627263964 is a `hidden beast` number, since 4 + 0 + 5 + 627 + 2 + 6 + 3 + 9 + 6 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 405627263964.

It is a congruent number.

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, 25483954 + ... + 25499865.

It is an arithmetic number, because the mean of its divisors is an integer number (16238346670).

Almost surely, 2^405627263964 is an apocalyptic number.

It is an amenable number.

405627263964 is an abundant number, since it is smaller than the sum of its proper divisors (763533696276).

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

405627263964 is a wasteful number, since it uses less digits than its factorization.

405627263964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50983859 (or 50983854 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 54.

The spelling of 405627263964 in words is "four hundred five billion, six hundred twenty-seven million, two hundred sixty-three thousand, nine hundred sixty-four".