23251342782878 has 32 divisors (see below), whose sum is σ = 40807075968000. Its totient is φ = 9730220455584.

The previous prime is 23251342782869. The next prime is 23251342782917. The reversal of 23251342782878 is 87828724315232.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23251342782878.

It is a congruent number.

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, 94337750 + ... + 94583897.

It is an arithmetic number, because the mean of its divisors is an integer number (1275221124000).

Almost surely, 2^{23251342782878} is an apocalyptic number.

23251342782878 is a deficient number, since it is larger than the sum of its proper divisors (17555733185122).

23251342782878 is a wasteful number, since it uses less digits than its factorization.

23251342782878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188921864.

The product of its digits is 72253440, while the sum is 62.

The spelling of 23251342782878 in words is "twenty-three trillion, two hundred fifty-one billion, three hundred forty-two million, seven hundred eighty-two thousand, eight hundred seventy-eight".