623455520464 has 40 divisors (see below), whose sum is σ = 1380592122560. Its totient is φ = 267179067648.

The previous prime is 623455520459. The next prime is 623455520477. The reversal of 623455520464 is 464025554326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1794052 + ... + 2113180.

It is an arithmetic number, because the mean of its divisors is an integer number (34514803064).

Almost surely, 2^623455520464 is an apocalyptic number.

It is an amenable number.

623455520464 is an abundant number, since it is smaller than the sum of its proper divisors (757136602096).

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

623455520464 is a wasteful number, since it uses less digits than its factorization.

623455520464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336587 (or 336581 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 46.

The spelling of 623455520464 in words is "six hundred twenty-three billion, four hundred fifty-five million, five hundred twenty thousand, four hundred sixty-four".