18414737856 has 56 divisors (see below), whose sum is σ = 54135924240. Its totient is φ = 6138245376.

The previous prime is 18414737849. The next prime is 18414737857. The reversal of 18414737856 is 65873741481.

18414737856 is a `hidden beast` number, since 1 + 84 + 147 + 378 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18414737857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5326611 + ... + 5330066.

Almost surely, 2^18414737856 is an apocalyptic number.

18414737856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18414737856 is an abundant number, since it is smaller than the sum of its proper divisors (35721186384).

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

18414737856 is a wasteful number, since it uses less digits than its factorization.

18414737856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10656698 (or 10656682 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The spelling of 18414737856 in words is "eighteen billion, four hundred fourteen million, seven hundred thirty-seven thousand, eight hundred fifty-six".