22905042248909 has 4 divisors (see below), whose sum is σ = 22963924105980. Its totient is φ = 22846160391840.

The previous prime is 22905042248833. The next prime is 22905042248969. The reversal of 22905042248909 is 90984224050922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9076981916809 + 13828060332100 = 3012803^2 + 3718610^2 .

It is a cyclic number.

It is not a de Polignac number, because 22905042248909 - 2²⁰ = 22905041200333 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 (22905042248969) 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, 29440927952 + ... + 29440928729.

It is an arithmetic number, because the mean of its divisors is an integer number (5740981026495).

Almost surely, 2^{22905042248909} is an apocalyptic number.

It is an amenable number.

22905042248909 is a deficient number, since it is larger than the sum of its proper divisors (58881857071).

22905042248909 is an equidigital number, since it uses as much as digits as its factorization.

22905042248909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58881857070.

The product of its (nonzero) digits is 7464960, while the sum is 56.

The spelling of 22905042248909 in words is "twenty-two trillion, nine hundred five billion, forty-two million, two hundred forty-eight thousand, nine hundred nine".