18769233408 has 80 divisors (see below), whose sum is σ = 50078419776. Its totient is φ = 6246901760.

The previous prime is 18769233397. The next prime is 18769233419. The reversal of 18769233408 is 80433296781.

It is an interprime number because it is at equal distance from previous prime (18769233397) and next prime (18769233419).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040143 + ... + 1058033.

Almost surely, 2^18769233408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18769233408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25039209888).

18769233408 is an abundant number, since it is smaller than the sum of its proper divisors (31309186368).

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

18769233408 is an equidigital number, since it uses as much as digits as its factorization.

18769233408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18595 (or 18579 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 18769233408 in words is "eighteen billion, seven hundred sixty-nine million, two hundred thirty-three thousand, four hundred eight".