21710307336 has 16 divisors (see below), whose sum is σ = 54275768400. Its totient is φ = 7236769104.

The previous prime is 21710307329. The next prime is 21710307341. The reversal of 21710307336 is 63370301712.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21710307297 and 21710307306.

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, 452298046 + ... + 452298093.

It is an arithmetic number, because the mean of its divisors is an integer number (3392235525).

Almost surely, 2^21710307336 is an apocalyptic number.

It is an amenable number.

21710307336 is an abundant number, since it is smaller than the sum of its proper divisors (32565461064).

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

21710307336 is a wasteful number, since it uses less digits than its factorization.

21710307336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904596148 (or 904596144 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 33.

The spelling of 21710307336 in words is "twenty-one billion, seven hundred ten million, three hundred seven thousand, three hundred thirty-six".