42640606264 has 16 divisors (see below), whose sum is σ = 79968426120. Its totient is φ = 21315692640.

The previous prime is 42640606259. The next prime is 42640606277. The reversal of 42640606264 is 46260604624.

It is a super-2 number, since 2×42640606264² (a number of 22 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, 536847 + ... + 611134.

Almost surely, 2^42640606264 is an apocalyptic number.

It is an amenable number.

42640606264 is a deficient number, since it is larger than the sum of its proper divisors (37327819856).

42640606264 is a wasteful number, since it uses less digits than its factorization.

42640606264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152630 (or 1152626 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 42640606264 in words is "forty-two billion, six hundred forty million, six hundred six thousand, two hundred sixty-four".