18142542045 has 12 divisors (see below), whose sum is σ = 31447072956. Its totient is φ = 9676022400.

The previous prime is 18142542017. The next prime is 18142542133. The reversal of 18142542045 is 54024524181.

It can be written as a sum of positive squares in 2 ways, for example, as 8567723844 + 9574818201 = 92562^2 + 97851^2 .

It is not a de Polignac number, because 18142542045 - 2¹⁶ = 18142476509 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 201583756 + ... + 201583845.

It is an arithmetic number, because the mean of its divisors is an integer number (2620589413).

Almost surely, 2^18142542045 is an apocalyptic number.

18142542045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18142542045 is a deficient number, since it is larger than the sum of its proper divisors (13304530911).

18142542045 is a wasteful number, since it uses less digits than its factorization.

18142542045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403167612 (or 403167609 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The spelling of 18142542045 in words is "eighteen billion, one hundred forty-two million, five hundred forty-two thousand, forty-five".