18279675380 has 24 divisors (see below), whose sum is σ = 38405421600. Its totient is φ = 7308421920.

The previous prime is 18279675373. The next prime is 18279675389. The reversal of 18279675380 is 8357697281.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18279675389) 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 7 ways as a sum of consecutive naturals, for example, 171830 + ... + 257069.

It is an arithmetic number, because the mean of its divisors is an integer number (1600225900).

Almost surely, 2^18279675380 is an apocalyptic number.

18279675380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18279675380 is an abundant number, since it is smaller than the sum of its proper divisors (20125746220).

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

18279675380 is a wasteful number, since it uses less digits than its factorization.

18279675380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431039 (or 431037 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 18279675380 in words is "eighteen billion, two hundred seventy-nine million, six hundred seventy-five thousand, three hundred eighty".