18317610980 has 12 divisors (see below), whose sum is σ = 38466983100. Its totient is φ = 7327044384.

The previous prime is 18317610967. The next prime is 18317611001. The reversal of 18317610980 is 8901671381.

It can be written as a sum of positive squares in 2 ways, for example, as 14300333056 + 4017277924 = 119584^2 + 63382^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457940255 + ... + 457940294.

It is an arithmetic number, because the mean of its divisors is an integer number (3205581925).

Almost surely, 2^18317610980 is an apocalyptic number.

18317610980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18317610980 is an abundant number, since it is smaller than the sum of its proper divisors (20149372120).

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

18317610980 is a wasteful number, since it uses less digits than its factorization.

18317610980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915880558 (or 915880556 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 18317610980 in words is "eighteen billion, three hundred seventeen million, six hundred ten thousand, nine hundred eighty".