21799580967 has 24 divisors (see below), whose sum is σ = 31664724000. Its totient is φ = 14451706368.

The previous prime is 21799580963. The next prime is 21799580983. The reversal of 21799580967 is 76908599712.

It is not a de Polignac number, because 21799580967 - 2² = 21799580963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21799580963) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5745423 + ... + 5749215.

It is an arithmetic number, because the mean of its divisors is an integer number (1319363500).

Almost surely, 2^21799580967 is an apocalyptic number.

21799580967 is a deficient number, since it is larger than the sum of its proper divisors (9865143033).

21799580967 is a wasteful number, since it uses less digits than its factorization.

21799580967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7207 (or 7204 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 63.

The spelling of 21799580967 in words is "twenty-one billion, seven hundred ninety-nine million, five hundred eighty thousand, nine hundred sixty-seven".