22539981970 has 32 divisors (see below), whose sum is σ = 44432603136. Its totient is φ = 8164454400.

The previous prime is 22539981943. The next prime is 22539982051. The reversal of 22539981970 is 7918993522.

It is a Harshad number since it is a multiple of its sum of digits (55).

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, 370386 + ... + 426925.

It is an arithmetic number, because the mean of its divisors is an integer number (1388518848).

Almost surely, 2^22539981970 is an apocalyptic number.

22539981970 is a deficient number, since it is larger than the sum of its proper divisors (21892621166).

22539981970 is a wasteful number, since it uses less digits than its factorization.

22539981970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797586.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 22539981970 in words is "twenty-two billion, five hundred thirty-nine million, nine hundred eighty-one thousand, nine hundred seventy".