18979314732 has 144 divisors (see below), whose sum is σ = 55858263552. Its totient is φ = 5321594880.

The previous prime is 18979314713. The next prime is 18979314733. The reversal of 18979314732 is 23741397981.

18979314732 is a `hidden beast` number, since 1 + 89 + 7 + 93 + 1 + 473 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (18979314733) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4059148 + ... + 4063820.

It is an arithmetic number, because the mean of its divisors is an integer number (387904608).

Almost surely, 2^18979314732 is an apocalyptic number.

18979314732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18979314732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27929131776).

18979314732 is an abundant number, since it is smaller than the sum of its proper divisors (36878948820).

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

18979314732 is a wasteful number, since it uses less digits than its factorization.

18979314732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988 (or 4983 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The spelling of 18979314732 in words is "eighteen billion, nine hundred seventy-nine million, three hundred fourteen thousand, seven hundred thirty-two".