18142387776 has 84 divisors (see below), whose sum is σ = 53927920592. Its totient is φ = 6047457408.

The previous prime is 18142387771. The next prime is 18142387793. The reversal of 18142387776 is 67778324181.

18142387776 is a `hidden beast` number, since 1 + 81 + 423 + 8 + 77 + 76 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (18142387771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 567730 + ... + 598833.

Almost surely, 2^18142387776 is an apocalyptic number.

18142387776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18142387776 is an abundant number, since it is smaller than the sum of its proper divisors (35785532816).

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

18142387776 is an equidigital number, since it uses as much as digits as its factorization.

18142387776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166590 (or 1166568 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 54.

The spelling of 18142387776 in words is "eighteen billion, one hundred forty-two million, three hundred eighty-seven thousand, seven hundred seventy-six".