23798915818 has 32 divisors (see below), whose sum is σ = 36377683200. Its totient is φ = 11675576064.

The previous prime is 23798915771. The next prime is 23798915831. The reversal of 23798915818 is 81851989732.

It is a super-2 number, since 2×23798915818² (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 15 ways as a sum of consecutive naturals, for example, 21079078 + ... + 21080206.

It is an arithmetic number, because the mean of its divisors is an integer number (1136802600).

Almost surely, 2^23798915818 is an apocalyptic number.

23798915818 is a deficient number, since it is larger than the sum of its proper divisors (12578767382).

23798915818 is a wasteful number, since it uses less digits than its factorization.

23798915818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094.

The product of its digits is 8709120, while the sum is 61.

The spelling of 23798915818 in words is "twenty-three billion, seven hundred ninety-eight million, nine hundred fifteen thousand, eight hundred eighteen".