22621582013 has 4 divisors (see below), whose sum is σ = 22686774240. Its totient is φ = 22556389788.

The previous prime is 22621582007. The next prime is 22621582063. The reversal of 22621582013 is 31028512622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22621582013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22621582003) 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 3 ways as a sum of consecutive naturals, for example, 32595593 + ... + 32596286.

It is an arithmetic number, because the mean of its divisors is an integer number (5671693560).

Almost surely, 2^22621582013 is an apocalyptic number.

It is an amenable number.

22621582013 is a deficient number, since it is larger than the sum of its proper divisors (65192227).

22621582013 is an equidigital number, since it uses as much as digits as its factorization.

22621582013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65192226.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 22621582013 in words is "twenty-two billion, six hundred twenty-one million, five hundred eighty-two thousand, thirteen".