23809894892 has 12 divisors (see below), whose sum is σ = 47619789840. Its totient is φ = 10204240656.

The previous prime is 23809894819. The next prime is 23809894921. The reversal of 23809894892 is 29849890832.

23809894892 is an admirable number.

It is a super-2 number, since 2×23809894892² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425176667 + ... + 425176722.

It is an arithmetic number, because the mean of its divisors is an integer number (3968315820).

Almost surely, 2^23809894892 is an apocalyptic number.

It is an amenable number.

23809894892 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23809894892 is a wasteful number, since it uses less digits than its factorization.

23809894892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850353400 (or 850353398 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 62.

The spelling of 23809894892 in words is "twenty-three billion, eight hundred nine million, eight hundred ninety-four thousand, eight hundred ninety-two".