42556818557964 has 24 divisors (see below), whose sum is σ = 102502444699648. Its totient is φ = 13728005986320.

The previous prime is 42556818557951. The next prime is 42556818557983. The reversal of 42556818557964 is 46975581865524.

It is a super-2 number, since 2×42556818557964² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57200024572 + ... + 57200025315.

Almost surely, 2^{42556818557964} is an apocalyptic number.

It is an amenable number.

42556818557964 is an abundant number, since it is smaller than the sum of its proper divisors (59945626141684).

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

42556818557964 is a wasteful number, since it uses less digits than its factorization.

42556818557964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114400049925 (or 114400049923 counting only the distinct ones).

The product of its digits is 2903040000, while the sum is 75.

The spelling of 42556818557964 in words is "forty-two trillion, five hundred fifty-six billion, eight hundred eighteen million, five hundred fifty-seven thousand, nine hundred sixty-four".