23822685157 has 16 divisors (see below), whose sum is σ = 25416342000. Its totient is φ = 22250675200.

The previous prime is 23822685143. The next prime is 23822685217. The reversal of 23822685157 is 75158622832.

It can be written as a sum of positive squares in 8 ways, for example, as 131010916 + 23691674241 = 11446^2 + 153921^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23822685157 is a prime.

It is a super-2 number, since 2×23822685157² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23822685157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23822680157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3291819 + ... + 3299047.

It is an arithmetic number, because the mean of its divisors is an integer number (1588521375).

Almost surely, 2^23822685157 is an apocalyptic number.

It is an amenable number.

23822685157 is a deficient number, since it is larger than the sum of its proper divisors (1593656843).

23822685157 is a wasteful number, since it uses less digits than its factorization.

23822685157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8696.

The product of its digits is 1612800, while the sum is 49.

The spelling of 23822685157 in words is "twenty-three billion, eight hundred twenty-two million, six hundred eighty-five thousand, one hundred fifty-seven".