10642621444564 has 12 divisors (see below), whose sum is σ = 18886905662688. Its totient is φ = 5246362683800.

The previous prime is 10642621444501. The next prime is 10642621444579. The reversal of 10642621444564 is 46544412624601.

It is a super-2 number, since 2×10642621444564² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18737009302 + ... + 18737009869.

It is an arithmetic number, because the mean of its divisors is an integer number (1573908805224).

Almost surely, 2^{10642621444564} is an apocalyptic number.

It is an amenable number.

10642621444564 is a deficient number, since it is larger than the sum of its proper divisors (8244284218124).

10642621444564 is a wasteful number, since it uses less digits than its factorization.

10642621444564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37474019246 (or 37474019244 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 49.

The spelling of 10642621444564 in words is "ten trillion, six hundred forty-two billion, six hundred twenty-one million, four hundred forty-four thousand, five hundred sixty-four".