21412929312 has 60 divisors (see below), whose sum is σ = 62974837926. Its totient is φ = 7137642240.

The previous prime is 21412929283. The next prime is 21412929323. The reversal of 21412929312 is 21392921412.

21412929312 is a `hidden beast` number, since 214 + 129 + 2 + 9 + 312 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20829416976 + 583512336 = 144324^2 + 24156^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

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 9 ways as a sum of consecutive naturals, for example, 4127989 + ... + 4133172.

Almost surely, 2^21412929312 is an apocalyptic number.

It is an amenable number.

21412929312 is an abundant number, since it is smaller than the sum of its proper divisors (41561908614).

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

21412929312 is an equidigital number, since it uses as much as digits as its factorization.

21412929312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8261183 (or 8261166 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The spelling of 21412929312 in words is "twenty-one billion, four hundred twelve million, nine hundred twenty-nine thousand, three hundred twelve".