21990362713 has 8 divisors (see below), whose sum is σ = 23997314880. Its totient is φ = 19984715280.

The previous prime is 21990362623. The next prime is 21990362729. The reversal of 21990362713 is 31726309912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21990362713 - 2²⁵ = 21956808281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21990362713.

It is not an unprimeable number, because it can be changed into a prime (21990362743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290770 + ... + 358507.

It is an arithmetic number, because the mean of its divisors is an integer number (2999664360).

Almost surely, 2^21990362713 is an apocalyptic number.

It is an amenable number.

21990362713 is a deficient number, since it is larger than the sum of its proper divisors (2006952167).

21990362713 is a wasteful number, since it uses less digits than its factorization.

21990362713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652367.

The product of its (nonzero) digits is 122472, while the sum is 43.

The spelling of 21990362713 in words is "twenty-one billion, nine hundred ninety million, three hundred sixty-two thousand, seven hundred thirteen".