42172715522 has 16 divisors (see below), whose sum is σ = 72438131520. Its totient is φ = 18038509008.

The previous prime is 42172715513. The next prime is 42172715531. The reversal of 42172715522 is 22551727124.

It is an interprime number because it is at equal distance from previous prime (42172715513) and next prime (42172715531).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2951948 + ... + 2966199.

It is an arithmetic number, because the mean of its divisors is an integer number (4527383220).

Almost surely, 2^42172715522 is an apocalyptic number.

42172715522 is a deficient number, since it is larger than the sum of its proper divisors (30265415998).

42172715522 is a wasteful number, since it uses less digits than its factorization.

42172715522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5918665.

The product of its digits is 78400, while the sum is 38.

The spelling of 42172715522 in words is "forty-two billion, one hundred seventy-two million, seven hundred fifteen thousand, five hundred twenty-two".