23144717928138 has 32 divisors (see below), whose sum is σ = 46360949874432. Its totient is φ = 7702987723200.

The previous prime is 23144717928127. The next prime is 23144717928191. The reversal of 23144717928138 is 83182971744132.

It is a happy 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, 157102920 + ... + 157250172.

It is an arithmetic number, because the mean of its divisors is an integer number (1448779683576).

Almost surely, 2^{23144717928138} is an apocalyptic number.

23144717928138 is an abundant number, since it is smaller than the sum of its proper divisors (23216231946294).

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

23144717928138 is a wasteful number, since it uses less digits than its factorization.

23144717928138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187550.

The product of its digits is 16257024, while the sum is 60.

The spelling of 23144717928138 in words is "twenty-three trillion, one hundred forty-four billion, seven hundred seventeen million, nine hundred twenty-eight thousand, one hundred thirty-eight".