23578012556 has 48 divisors (see below), whose sum is σ = 48099421440. Its totient is φ = 9903885120.

The previous prime is 23578012553. The next prime is 23578012567. The reversal of 23578012556 is 65521087532.

It is not an unprimeable number, because it can be changed into a prime (23578012553) 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, 458975 + ... + 507753.

It is an arithmetic number, because the mean of its divisors is an integer number (1002071280).

Almost surely, 2^23578012556 is an apocalyptic number.

It is an amenable number.

23578012556 is an abundant number, since it is smaller than the sum of its proper divisors (24521408884).

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

23578012556 is a wasteful number, since it uses less digits than its factorization.

23578012556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49134 (or 49132 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 23578012556 in words is "twenty-three billion, five hundred seventy-eight million, twelve thousand, five hundred fifty-six".