21930092588 has 12 divisors (see below), whose sum is σ = 38383096752. Its totient is φ = 10963493520.

The previous prime is 21930092567. The next prime is 21930092629. The reversal of 21930092588 is 88529003912.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356123 + ... + 413138.

It is an arithmetic number, because the mean of its divisors is an integer number (3198591396).

Almost surely, 2^21930092588 is an apocalyptic number.

It is an amenable number.

21930092588 is a deficient number, since it is larger than the sum of its proper divisors (16453004164).

21930092588 is a wasteful number, since it uses less digits than its factorization.

21930092588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776392 (or 776390 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 21930092588 in words is "twenty-one billion, nine hundred thirty million, ninety-two thousand, five hundred eighty-eight".