21710476604 has 24 divisors (see below), whose sum is σ = 38331003648. Its totient is φ = 10759126320.

The previous prime is 21710476577. The next prime is 21710476607. The reversal of 21710476604 is 40667401712.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21710476607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193919 + ... + 284649.

It is an arithmetic number, because the mean of its divisors is an integer number (1597125152).

Almost surely, 2^21710476604 is an apocalyptic number.

It is an amenable number.

21710476604 is a deficient number, since it is larger than the sum of its proper divisors (16620527044).

21710476604 is a wasteful number, since it uses less digits than its factorization.

21710476604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91265 (or 91263 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 21710476604 in words is "twenty-one billion, seven hundred ten million, four hundred seventy-six thousand, six hundred four".