18134986472780 has 48 divisors (see below), whose sum is σ = 38970133171200. Its totient is φ = 7085115323328.

The previous prime is 18134986472753. The next prime is 18134986472803. The reversal of 18134986472780 is 8727468943181.

It is a self number, because there is not a number n which added to its sum of digits gives 18134986472780.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36127877 + ... + 36626403.

It is an arithmetic number, because the mean of its divisors is an integer number (811877774400).

Almost surely, 2^{18134986472780} is an apocalyptic number.

18134986472780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18134986472780 is an abundant number, since it is smaller than the sum of its proper divisors (20835146698420).

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

18134986472780 is a wasteful number, since it uses less digits than its factorization.

18134986472780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540878 (or 540876 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 68.

The spelling of 18134986472780 in words is "eighteen trillion, one hundred thirty-four billion, nine hundred eighty-six million, four hundred seventy-two thousand, seven hundred eighty".