18102745377 has 32 divisors (see below), whose sum is σ = 27116208000. Its totient is φ = 11934895104.

The previous prime is 18102745373. The next prime is 18102745433. The reversal of 18102745377 is 77354720181.

18102745377 is a `hidden beast` number, since 1 + 8 + 1 + 0 + 274 + 5 + 377 = 666.

It is not a de Polignac number, because 18102745377 - 2² = 18102745373 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18102745373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5935749 + ... + 5938797.

It is an arithmetic number, because the mean of its divisors is an integer number (847381500).

Almost surely, 2^18102745377 is an apocalyptic number.

It is an amenable number.

18102745377 is a deficient number, since it is larger than the sum of its proper divisors (9013462623).

18102745377 is a wasteful number, since it uses less digits than its factorization.

18102745377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5422 (or 5416 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The spelling of 18102745377 in words is "eighteen billion, one hundred two million, seven hundred forty-five thousand, three hundred seventy-seven".