18232906723948 has 48 divisors (see below), whose sum is σ = 36664433455104. Its totient is φ = 7771558642560.

The previous prime is 18232906723907. The next prime is 18232906723957. The reversal of 18232906723948 is 84932760923281.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18232906723948.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25277311 + ... + 25988617.

It is an arithmetic number, because the mean of its divisors is an integer number (763842363648).

Almost surely, 2^{18232906723948} is an apocalyptic number.

It is an amenable number.

18232906723948 is an abundant number, since it is smaller than the sum of its proper divisors (18431526731156).

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

18232906723948 is a wasteful number, since it uses less digits than its factorization.

18232906723948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716302 (or 716300 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 64.

The spelling of 18232906723948 in words is "eighteen trillion, two hundred thirty-two billion, nine hundred six million, seven hundred twenty-three thousand, nine hundred forty-eight".