23663308728 has 32 divisors (see below), whose sum is σ = 59186082960. Its totient is φ = 7884061440.

The previous prime is 23663308717. The next prime is 23663308759. The reversal of 23663308728 is 82780336632.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179403 + ... + 281978.

Almost surely, 2^23663308728 is an apocalyptic number.

It is an amenable number.

23663308728 is an abundant number, since it is smaller than the sum of its proper divisors (35522774232).

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

23663308728 is a wasteful number, since it uses less digits than its factorization.

23663308728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463527 (or 463523 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 48.

The spelling of 23663308728 in words is "twenty-three billion, six hundred sixty-three million, three hundred eight thousand, seven hundred twenty-eight".