21153088592 has 40 divisors (see below), whose sum is σ = 44240739840. Its totient is φ = 9767838080.

The previous prime is 21153088577. The next prime is 21153088603. The reversal of 21153088592 is 29588035112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980384 + ... + 1001727.

It is an arithmetic number, because the mean of its divisors is an integer number (1106018496).

Almost surely, 2^21153088592 is an apocalyptic number.

It is an amenable number.

21153088592 is an abundant number, since it is smaller than the sum of its proper divisors (23087651248).

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

21153088592 is a wasteful number, since it uses less digits than its factorization.

21153088592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982171 (or 1982165 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 44.

The spelling of 21153088592 in words is "twenty-one billion, one hundred fifty-three million, eighty-eight thousand, five hundred ninety-two".