22921326929 has 4 divisors (see below), whose sum is σ = 23409014784. Its totient is φ = 22433639076.

The previous prime is 22921326893. The next prime is 22921326983. The reversal of 22921326929 is 92962312922.

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 not a de Polignac number, because 22921326929 - 2²⁸ = 22652891473 is a prime.

It is a super-2 number, since 2×22921326929² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 487687807 = 22921326929 / (2 + 2 + 9 + 2 + 1 + 3 + 2 + 6 + 9 + 2 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22921326529) 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, 243843857 + ... + 243843950.

It is an arithmetic number, because the mean of its divisors is an integer number (5852253696).

Almost surely, 2^22921326929 is an apocalyptic number.

It is an amenable number.

22921326929 is a deficient number, since it is larger than the sum of its proper divisors (487687855).

22921326929 is an equidigital number, since it uses as much as digits as its factorization.

22921326929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487687854.

The product of its digits is 419904, while the sum is 47.

The spelling of 22921326929 in words is "twenty-two billion, nine hundred twenty-one million, three hundred twenty-six thousand, nine hundred twenty-nine".