21170588484 has 24 divisors (see below), whose sum is σ = 49408928128. Its totient is φ = 7055307360.

The previous prime is 21170588431. The next prime is 21170588503. The reversal of 21170588484 is 48488507112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137047 + ... + 247230.

Almost surely, 2^21170588484 is an apocalyptic number.

It is an amenable number.

21170588484 is an abundant number, since it is smaller than the sum of its proper divisors (28238339644).

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

21170588484 is a wasteful number, since it uses less digits than its factorization.

21170588484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388875 (or 388873 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 48.

The spelling of 21170588484 in words is "twenty-one billion, one hundred seventy million, five hundred eighty-eight thousand, four hundred eighty-four".