21412073612 has 24 divisors (see below), whose sum is σ = 38936067072. Its totient is φ = 10292058000.

The previous prime is 21412073603. The next prime is 21412073623. The reversal of 21412073612 is 21637021412.

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, 553058 + ... + 590505.

It is an arithmetic number, because the mean of its divisors is an integer number (1622336128).

Almost surely, 2^21412073612 is an apocalyptic number.

It is an amenable number.

21412073612 is a deficient number, since it is larger than the sum of its proper divisors (17523993460).

21412073612 is a wasteful number, since it uses less digits than its factorization.

21412073612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143749 (or 1143747 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The spelling of 21412073612 in words is "twenty-one billion, four hundred twelve million, seventy-three thousand, six hundred twelve".