22828857509 has 4 divisors (see below), whose sum is σ = 23359761216. Its totient is φ = 22297953804.

The previous prime is 22828857463. The next prime is 22828857521. The reversal of 22828857509 is 90575882822.

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 22828857509 - 2²⁴ = 22812080293 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 (22828856509) 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, 265451789 + ... + 265451874.

It is an arithmetic number, because the mean of its divisors is an integer number (5839940304).

Almost surely, 2^22828857509 is an apocalyptic number.

It is an amenable number.

22828857509 is a deficient number, since it is larger than the sum of its proper divisors (530903707).

22828857509 is an equidigital number, since it uses as much as digits as its factorization.

22828857509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530903706.

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 22828857509 in words is "twenty-two billion, eight hundred twenty-eight million, eight hundred fifty-seven thousand, five hundred nine".