18168192832 has 28 divisors (see below), whose sum is σ = 37295701380. Its totient is φ = 8770850816.

The previous prime is 18168192827. The next prime is 18168192839. The reversal of 18168192832 is 23829186181.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7489863936 + 10678328896 = 86544^2 + 103336^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18168192839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4892593 + ... + 4896304.

It is an arithmetic number, because the mean of its divisors is an integer number (1331989335).

Almost surely, 2^18168192832 is an apocalyptic number.

It is an amenable number.

18168192832 is an abundant number, since it is smaller than the sum of its proper divisors (19127508548).

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

18168192832 is an equidigital number, since it uses as much as digits as its factorization.

18168192832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9788938 (or 9788928 counting only the distinct ones).

The product of its digits is 331776, while the sum is 49.

The spelling of 18168192832 in words is "eighteen billion, one hundred sixty-eight million, one hundred ninety-two thousand, eight hundred thirty-two".