18831778014 has 32 divisors (see below), whose sum is σ = 43062598656. Its totient is φ = 5378191200.

The previous prime is 18831778013. The next prime is 18831778073. The reversal of 18831778014 is 41087713881.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18831778013) 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, 3384 + ... + 194100.

It is an arithmetic number, because the mean of its divisors is an integer number (1345706208).

Almost surely, 2^18831778014 is an apocalyptic number.

18831778014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18831778014 is an abundant number, since it is smaller than the sum of its proper divisors (24230820642).

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

18831778014 is a wasteful number, since it uses less digits than its factorization.

18831778014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193080.

The product of its (nonzero) digits is 301056, while the sum is 48.

The spelling of 18831778014 in words is "eighteen billion, eight hundred thirty-one million, seven hundred seventy-eight thousand, fourteen".