22517972890 has 32 divisors (see below), whose sum is σ = 46578639744. Its totient is φ = 7677789120.

The previous prime is 22517972879. The next prime is 22517972941. The reversal of 22517972890 is 9827971522.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 875964 + ... + 901303.

It is an arithmetic number, because the mean of its divisors is an integer number (1455582492).

Almost surely, 2^22517972890 is an apocalyptic number.

22517972890 is an abundant number, since it is smaller than the sum of its proper divisors (24060666854).

22517972890 is a wasteful number, since it uses less digits than its factorization.

22517972890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777462.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 22517972890 in words is "twenty-two billion, five hundred seventeen million, nine hundred seventy-two thousand, eight hundred ninety".