22745321857 has 8 divisors (see below), whose sum is σ = 24049813760. Its totient is φ = 21451566960.

The previous prime is 22745321849. The next prime is 22745321861. The reversal of 22745321857 is 75812354722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22745321857 - 2³ = 22745321849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22745321257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2679894 + ... + 2688367.

It is an arithmetic number, because the mean of its divisors is an integer number (3006226720).

Almost surely, 2^22745321857 is an apocalyptic number.

It is an amenable number.

22745321857 is a deficient number, since it is larger than the sum of its proper divisors (1304491903).

22745321857 is a wasteful number, since it uses less digits than its factorization.

22745321857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5368503.

The product of its digits is 940800, while the sum is 46.

The spelling of 22745321857 in words is "twenty-two billion, seven hundred forty-five million, three hundred twenty-one thousand, eight hundred fifty-seven".