12054377718 has 40 divisors (see below), whose sum is σ = 27098829912. Its totient is φ = 4005021024.

The previous prime is 12054377677. The next prime is 12054377729. The reversal of 12054377718 is 81777345021.

12054377718 is a `hidden beast` number, since 1 + 20 + 543 + 7 + 77 + 18 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 71455 + ... + 170922.

Almost surely, 2^12054377718 is an apocalyptic number.

12054377718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12054377718 is an abundant number, since it is smaller than the sum of its proper divisors (15044452194).

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

12054377718 is a wasteful number, since it uses less digits than its factorization.

12054377718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242698 (or 242689 counting only the distinct ones).

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

The spelling of 12054377718 in words is "twelve billion, fifty-four million, three hundred seventy-seven thousand, seven hundred eighteen".