23657760456 has 128 divisors (see below), whose sum is σ = 68922576000. Its totient is φ = 6687457280.

The previous prime is 23657760433. The next prime is 23657760461. The reversal of 23657760456 is 65406775632.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 23657760399 and 23657760408.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 483820 + ... + 530468.

It is an arithmetic number, because the mean of its divisors is an integer number (538457625).

Almost surely, 2^23657760456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23657760456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34461288000).

23657760456 is an abundant number, since it is smaller than the sum of its proper divisors (45264815544).

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

23657760456 is a wasteful number, since it uses less digits than its factorization.

23657760456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46799 (or 46795 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 51.

The spelling of 23657760456 in words is "twenty-three billion, six hundred fifty-seven million, seven hundred sixty thousand, four hundred fifty-six".