21579365150 has 48 divisors (see below), whose sum is σ = 45905395200. Its totient is φ = 7393183200.

The previous prime is 21579365111. The next prime is 21579365173. The reversal of 21579365150 is 5156397512.

It is a Curzon number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 467615 + ... + 511685.

It is an arithmetic number, because the mean of its divisors is an integer number (956362400).

Almost surely, 2^21579365150 is an apocalyptic number.

21579365150 is an abundant number, since it is smaller than the sum of its proper divisors (24326030050).

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

21579365150 is a wasteful number, since it uses less digits than its factorization.

21579365150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45489 (or 45484 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 44.

The spelling of 21579365150 in words is "twenty-one billion, five hundred seventy-nine million, three hundred sixty-five thousand, one hundred fifty".