18332502772 has 36 divisors (see below), whose sum is σ = 35151924780. Its totient is φ = 8326843392.

The previous prime is 18332502761. The next prime is 18332502779. The reversal of 18332502772 is 27720523381.

It can be written as a sum of positive squares in 6 ways, for example, as 1508856336 + 16823646436 = 38844^2 + 129706^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18332502779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6011104 + ... + 6014152.

It is an arithmetic number, because the mean of its divisors is an integer number (976442355).

Almost surely, 2^18332502772 is an apocalyptic number.

It is an amenable number.

18332502772 is a deficient number, since it is larger than the sum of its proper divisors (16819422008).

18332502772 is an equidigital number, since it uses as much as digits as its factorization.

18332502772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6148 (or 3097 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 18332502772 in words is "eighteen billion, three hundred thirty-two million, five hundred two thousand, seven hundred seventy-two".