23056685694 has 128 divisors (see below), whose sum is σ = 60734208000. Its totient is φ = 6479313120.

The previous prime is 23056685653. The next prime is 23056685713. The reversal of 23056685694 is 49658665032.

23056685694 is a `hidden beast` number, since 23 + 0 + 56 + 6 + 8 + 569 + 4 = 666.

It is a super-2 number, since 2×23056685694² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23056685694.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1119639 + ... + 1140045.

It is an arithmetic number, because the mean of its divisors is an integer number (474486000).

Almost surely, 2^23056685694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23056685694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30367104000).

23056685694 is an abundant number, since it is smaller than the sum of its proper divisors (37677522306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23056685694 is a wasteful number, since it uses less digits than its factorization.

23056685694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20500 (or 20480 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 23056685694 in words is "twenty-three billion, fifty-six million, six hundred eighty-five thousand, six hundred ninety-four".