23638911678 has 48 divisors (see below), whose sum is σ = 53614559232. Its totient is φ = 7518042000.

The previous prime is 23638911677. The next prime is 23638911761. The reversal of 23638911678 is 87611983632.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23638911671) 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 23 ways as a sum of consecutive naturals, for example, 258718 + ... + 337953.

It is an arithmetic number, because the mean of its divisors is an integer number (1116969984).

Almost surely, 2^23638911678 is an apocalyptic number.

23638911678 is an abundant number, since it is smaller than the sum of its proper divisors (29975647554).

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

23638911678 is a wasteful number, since it uses less digits than its factorization.

23638911678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596781 (or 596778 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 23638911678 in words is "twenty-three billion, six hundred thirty-eight million, nine hundred eleven thousand, six hundred seventy-eight".