18898972680 has 192 divisors, whose sum is σ = 68081748480. Its totient is φ = 4180377600.

The previous prime is 18898972663. The next prime is 18898972717. The reversal of 18898972680 is 8627989881.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130440 + ... + 234120.

It is an arithmetic number, because the mean of its divisors is an integer number (354592440).

Almost surely, 2^18898972680 is an apocalyptic number.

18898972680 is a gapful number since it is divisible by the number (10) 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 18898972680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34040874240).

18898972680 is an abundant number, since it is smaller than the sum of its proper divisors (49182775800).

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

18898972680 is a wasteful number, since it uses less digits than its factorization.

18898972680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103740 (or 103729 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 66.

The spelling of 18898972680 in words is "eighteen billion, eight hundred ninety-eight million, nine hundred seventy-two thousand, six hundred eighty".