23657687442 has 32 divisors (see below), whose sum is σ = 53238124800. Its totient is φ = 7786072944.

The previous prime is 23657687437. The next prime is 23657687489. The reversal of 23657687442 is 24478675632.

23657687442 is a `hidden beast` number, since 23 + 6 + 576 + 8 + 7 + 4 + 42 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2768553 + ... + 2777084.

It is an arithmetic number, because the mean of its divisors is an integer number (1663691400).

Almost surely, 2^23657687442 is an apocalyptic number.

23657687442 is an abundant number, since it is smaller than the sum of its proper divisors (29580437358).

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

23657687442 is a wasteful number, since it uses less digits than its factorization.

23657687442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5545727 (or 5545721 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 54.

The spelling of 23657687442 in words is "twenty-three billion, six hundred fifty-seven million, six hundred eighty-seven thousand, four hundred forty-two".