42089634256 has 10 divisors (see below), whose sum is σ = 81548666402. Its totient is φ = 21044817120.

The previous prime is 42089634253. The next prime is 42089634281. The reversal of 42089634256 is 65243698024.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28151470656 + 13938163600 = 167784^2 + 118060^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42089634253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315301055 + ... + 1315301086.

Almost surely, 2^42089634256 is an apocalyptic number.

It is an amenable number.

42089634256 is a deficient number, since it is larger than the sum of its proper divisors (39459032146).

42089634256 is a wasteful number, since it uses less digits than its factorization.

42089634256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630602149 (or 2630602143 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 42089634256 in words is "forty-two billion, eighty-nine million, six hundred thirty-four thousand, two hundred fifty-six".