42089804964 has 81 divisors (see below), whose sum is σ = 110036199819. Its totient is φ = 13565046960.

The previous prime is 42089804927. The next prime is 42089804993. The reversal of 42089804964 is 46940898024.

The square root of 42089804964 is 205158.

It is a perfect power (a square), and thus also a powerful number.

42089804964 is a `hidden beast` number, since 420 + 89 + 80 + 4 + 9 + 64 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 42089804964.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 38158837 + ... + 38159939.

Almost surely, 2^42089804964 is an apocalyptic number.

42089804964 is the 205158-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42089804964

42089804964 is an abundant number, since it is smaller than the sum of its proper divisors (67946394855).

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

42089804964 is a wasteful number, since it uses less digits than its factorization.

42089804964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 42089804964 in words is "forty-two billion, eighty-nine million, eight hundred four thousand, nine hundred sixty-four".