18796781740 has 48 divisors (see below), whose sum is σ = 44933978880. Its totient is φ = 6538009280.

The previous prime is 18796781711. The next prime is 18796781747. The reversal of 18796781740 is 4718769781.

It is not an unprimeable number, because it can be changed into a prime (18796781747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1852330 + ... + 1862449.

It is an arithmetic number, because the mean of its divisors is an integer number (936124560).

Almost surely, 2^18796781740 is an apocalyptic number.

18796781740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18796781740 is an abundant number, since it is smaller than the sum of its proper divisors (26137197140).

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

18796781740 is a wasteful number, since it uses less digits than its factorization.

18796781740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714822 (or 3714820 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 58.

The spelling of 18796781740 in words is "eighteen billion, seven hundred ninety-six million, seven hundred eighty-one thousand, seven hundred forty".