23639745806418 has 16 divisors (see below), whose sum is σ = 54033704700480. Its totient is φ = 6754213087536.

The previous prime is 23639745806353. The next prime is 23639745806419. The reversal of 23639745806418 is 81460854793632.

It is not an unprimeable number, because it can be changed into a prime (23639745806419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281425545273 + ... + 281425545356.

It is an arithmetic number, because the mean of its divisors is an integer number (3377106543780).

It is a 1-persistent number, because it is pandigital, but 2⋅23639745806418 = 47279491612836 is not.

Almost surely, 2^{23639745806418} is an apocalyptic number.

23639745806418 is an abundant number, since it is smaller than the sum of its proper divisors (30393958894062).

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

23639745806418 is a wasteful number, since it uses less digits than its factorization.

23639745806418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562851090641.

The product of its (nonzero) digits is 209018880, while the sum is 66.

The spelling of 23639745806418 in words is "twenty-three trillion, six hundred thirty-nine billion, seven hundred forty-five million, eight hundred six thousand, four hundred eighteen".