21710670760 has 64 divisors (see below), whose sum is σ = 52925400000. Its totient is φ = 7983338496.

The previous prime is 21710670749. The next prime is 21710670797. The reversal of 21710670760 is 6707601712.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342010 + ... + 400489.

It is an arithmetic number, because the mean of its divisors is an integer number (826959375).

Almost surely, 2^21710670760 is an apocalyptic number.

21710670760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21710670760 is an abundant number, since it is smaller than the sum of its proper divisors (31214729240).

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

21710670760 is a wasteful number, since it uses less digits than its factorization.

21710670760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742570 (or 742566 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 37.

The spelling of 21710670760 in words is "twenty-one billion, seven hundred ten million, six hundred seventy thousand, seven hundred sixty".