21876725732 has 12 divisors (see below), whose sum is σ = 38287109616. Its totient is φ = 10937551560.

The previous prime is 21876725713. The next prime is 21876725777. The reversal of 21876725732 is 23752767812.

It is a super-2 number, since 2×21876725732² (a number of 21 digits) contains 22 as substring.

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, 139994 + ... + 251697.

It is an arithmetic number, because the mean of its divisors is an integer number (3190592468).

Almost surely, 2^21876725732 is an apocalyptic number.

It is an amenable number.

21876725732 is a deficient number, since it is larger than the sum of its proper divisors (16410383884).

21876725732 is a wasteful number, since it uses less digits than its factorization.

21876725732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405658 (or 405656 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 50.

The spelling of 21876725732 in words is "twenty-one billion, eight hundred seventy-six million, seven hundred twenty-five thousand, seven hundred thirty-two".