23179157918 has 16 divisors (see below), whose sum is σ = 39737714400. Its totient is φ = 9933421056.

The previous prime is 23179157917. The next prime is 23179157957. The reversal of 23179157918 is 81975197132.

It is a happy number.

It is a zygodrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 23179157918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23179157917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416930 + ... + 469242.

It is an arithmetic number, because the mean of its divisors is an integer number (2483607150).

Almost surely, 2^23179157918 is an apocalyptic number.

23179157918 is a deficient number, since it is larger than the sum of its proper divisors (16558556482).

23179157918 is a wasteful number, since it uses less digits than its factorization.

23179157918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83971.

The product of its digits is 952560, while the sum is 53.

The spelling of 23179157918 in words is "twenty-three billion, one hundred seventy-nine million, one hundred fifty-seven thousand, nine hundred eighteen".