18699941376 has 240 divisors, whose sum is σ = 55685998368. Its totient is φ = 6038323200.

The previous prime is 18699941369. The next prime is 18699941423. The reversal of 18699941376 is 67314999681.

18699941376 is a `hidden beast` number, since 1 + 8 + 69 + 99 + 413 + 76 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19956780 + ... + 19957716.

Almost surely, 2^18699941376 is an apocalyptic number.

18699941376 is a gapful number since it is divisible by the number (16) 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 18699941376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27842999184).

18699941376 is an abundant number, since it is smaller than the sum of its proper divisors (36986056992).

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

18699941376 is an equidigital number, since it uses as much as digits as its factorization.

18699941376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093 (or 1074 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The spelling of 18699941376 in words is "eighteen billion, six hundred ninety-nine million, nine hundred forty-one thousand, three hundred seventy-six".