21707293060 has 24 divisors (see below), whose sum is σ = 47055810816. Its totient is φ = 8402822880.

The previous prime is 21707293057. The next prime is 21707293061. The reversal of 21707293060 is 6039270712.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (21707293061) 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, 17505262 + ... + 17506501.

It is an arithmetic number, because the mean of its divisors is an integer number (1960658784).

Almost surely, 2^21707293060 is an apocalyptic number.

21707293060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21707293060 is an abundant number, since it is smaller than the sum of its proper divisors (25348517756).

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

21707293060 is a wasteful number, since it uses less digits than its factorization.

21707293060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35011803 (or 35011801 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 37.

The spelling of 21707293060 in words is "twenty-one billion, seven hundred seven million, two hundred ninety-three thousand, sixty".