18712415470 has 48 divisors (see below), whose sum is σ = 39224111328. Its totient is φ = 6408709440.

The previous prime is 18712415459. The next prime is 18712415537. The reversal of 18712415470 is 7451421781.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 440799 + ... + 481381.

It is an arithmetic number, because the mean of its divisors is an integer number (817168986).

Almost surely, 2^18712415470 is an apocalyptic number.

18712415470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18712415470 is an abundant number, since it is smaller than the sum of its proper divisors (20511695858).

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

18712415470 is a wasteful number, since it uses less digits than its factorization.

18712415470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41545 (or 41538 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 40.

The spelling of 18712415470 in words is "eighteen billion, seven hundred twelve million, four hundred fifteen thousand, four hundred seventy".