22315945793 has 4 divisors (see below), whose sum is σ = 22737001428. Its totient is φ = 21894890160.

The previous prime is 22315945763. The next prime is 22315945903. The reversal of 22315945793 is 39754951322.

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 19183081009 + 3132864784 = 138503^2 + 55972^2 .

It is a cyclic number.

It is not a de Polignac number, because 22315945793 - 2³⁴ = 5136076609 is a prime.

It is a super-3 number, since 3×22315945793³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22315945733) 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, 210527738 + ... + 210527843.

It is an arithmetic number, because the mean of its divisors is an integer number (5684250357).

Almost surely, 2^22315945793 is an apocalyptic number.

It is an amenable number.

22315945793 is a deficient number, since it is larger than the sum of its proper divisors (421055635).

22315945793 is an equidigital number, since it uses as much as digits as its factorization.

22315945793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421055634.

The product of its digits is 2041200, while the sum is 50.

The spelling of 22315945793 in words is "twenty-two billion, three hundred fifteen million, nine hundred forty-five thousand, seven hundred ninety-three".