18498678000 has 320 divisors, whose sum is σ = 65387672064. Its totient is φ = 4462080000.

The previous prime is 18498677969. The next prime is 18498678041. The reversal of 18498678000 is 87689481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15905419 + ... + 15906581.

Almost surely, 2^18498678000 is an apocalyptic number.

18498678000 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 18498678000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32693836032).

18498678000 is an abundant number, since it is smaller than the sum of its proper divisors (46888994064).

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

18498678000 is a wasteful number, since it uses less digits than its factorization.

18498678000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441 (or 1425 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 18498678000 in words is "eighteen billion, four hundred ninety-eight million, six hundred seventy-eight thousand".