8972158522 has 4 divisors (see below), whose sum is σ = 13458237786. Its totient is φ = 4486079260.

The previous prime is 8972158487. The next prime is 8972158537. The reversal of 8972158522 is 2258512798.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8022964041 + 949194481 = 89571^2 + 30809^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2243039629 + ... + 2243039632.

Almost surely, 2^8972158522 is an apocalyptic number.

8972158522 is a deficient number, since it is larger than the sum of its proper divisors (4486079264).

8972158522 is a wasteful number, since it uses less digits than its factorization.

8972158522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486079263.

The product of its digits is 806400, while the sum is 49.

The square root of 8972158522 is about 94721.4786730021. The cubic root of 8972158522 is about 2077.9366960762.

The spelling of 8972158522 in words is "eight billion, nine hundred seventy-two million, one hundred fifty-eight thousand, five hundred twenty-two".