22387880690 has 48 divisors (see below), whose sum is σ = 48606651072. Its totient is φ = 7271844768.

The previous prime is 22387880651. The next prime is 22387880693. The reversal of 22387880690 is 9608878322.

It is a super-2 number, since 2×22387880690² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22387880693) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 417704 + ... + 468243.

It is an arithmetic number, because the mean of its divisors is an integer number (1012638564).

Almost surely, 2^22387880690 is an apocalyptic number.

22387880690 is an abundant number, since it is smaller than the sum of its proper divisors (26218770382).

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

22387880690 is a wasteful number, since it uses less digits than its factorization.

22387880690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885999 (or 885980 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 22387880690 in words is "twenty-two billion, three hundred eighty-seven million, eight hundred eighty thousand, six hundred ninety".