18739714842 has 24 divisors (see below), whose sum is σ = 40719069300. Its totient is φ = 6228671040.

The previous prime is 18739714841. The next prime is 18739714843. The reversal of 18739714842 is 24841793781.

18739714842 is a `hidden beast` number, since 1 + 8 + 73 + 97 + 1 + 484 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (18739714841) and next prime (18739714843).

It can be written as a sum of positive squares in 2 ways, for example, as 18700289001 + 39425841 = 136749^2 + 6279^2 .

It is not an unprimeable number, because it can be changed into a prime (18739714841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1485259 + ... + 1497822.

Almost surely, 2^18739714842 is an apocalyptic number.

18739714842 is an abundant number, since it is smaller than the sum of its proper divisors (21979354458).

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

18739714842 is a wasteful number, since it uses less digits than its factorization.

18739714842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2983438 (or 2983435 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The spelling of 18739714842 in words is "eighteen billion, seven hundred thirty-nine million, seven hundred fourteen thousand, eight hundred forty-two".