23261751878 has 16 divisors (see below), whose sum is σ = 34972828800. Its totient is φ = 11604168000.

The previous prime is 23261751847. The next prime is 23261751881. The reversal of 23261751878 is 87815716232.

It is a super-2 number, since 2×23261751878² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

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, 2231723 + ... + 2242121.

It is an arithmetic number, because the mean of its divisors is an integer number (2185801800).

Almost surely, 2^23261751878 is an apocalyptic number.

23261751878 is a deficient number, since it is larger than the sum of its proper divisors (11711076922).

23261751878 is a wasteful number, since it uses less digits than its factorization.

23261751878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12863.

The product of its digits is 1128960, while the sum is 50.

The spelling of 23261751878 in words is "twenty-three billion, two hundred sixty-one million, seven hundred fifty-one thousand, eight hundred seventy-eight".