22915594088989 has 4 divisors (see below), whose sum is σ = 26189250387424. Its totient is φ = 19641937790556.

The previous prime is 22915594088879. The next prime is 22915594089001. The reversal of 22915594088989 is 98988049551922.

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-22915594088989 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 (22915594088389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1636828149207 + ... + 1636828149220.

It is an arithmetic number, because the mean of its divisors is an integer number (6547312596856).

Almost surely, 2^{22915594088989} is an apocalyptic number.

It is an amenable number.

22915594088989 is a deficient number, since it is larger than the sum of its proper divisors (3273656298435).

22915594088989 is an equidigital number, since it uses as much as digits as its factorization.

22915594088989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3273656298434.

The product of its (nonzero) digits is 1343692800, while the sum is 79.

The spelling of 22915594088989 in words is "twenty-two trillion, nine hundred fifteen billion, five hundred ninety-four million, eighty-eight thousand, nine hundred eighty-nine".