42054802688 has 18 divisors (see below), whose sum is σ = 83945329314. Its totient is φ = 21027401216.

The previous prime is 42054802639. The next prime is 42054802717. The reversal of 42054802688 is 88620845024.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 39597816064 + 2456986624 = 198992^2 + 49568^2 .

It is a super-2 number, since 2×42054802688² (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 as a sum of consecutive naturals, namely, 82138031 + ... + 82138542.

Almost surely, 2^42054802688 is an apocalyptic number.

It is an amenable number.

42054802688 is a deficient number, since it is larger than the sum of its proper divisors (41890526626).

42054802688 is an equidigital number, since it uses as much as digits as its factorization.

42054802688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164276589 (or 164276575 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 47.

The spelling of 42054802688 in words is "forty-two billion, fifty-four million, eight hundred two thousand, six hundred eighty-eight".