18486331080 has 128 divisors (see below), whose sum is σ = 67110094080. Its totient is φ = 3976888320.

The previous prime is 18486331079. The next prime is 18486331099. The reversal of 18486331080 is 8013368481.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 633001 + ... + 661560.

It is an arithmetic number, because the mean of its divisors is an integer number (524297610).

Almost surely, 2^18486331080 is an apocalyptic number.

18486331080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18486331080 is an abundant number, since it is smaller than the sum of its proper divisors (48623763000).

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

18486331080 is a wasteful number, since it uses less digits than its factorization.

18486331080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294599 (or 1294595 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 18486331080 in words is "eighteen billion, four hundred eighty-six million, three hundred thirty-one thousand, eighty".