18793941642 has 96 divisors (see below), whose sum is σ = 48088694784. Its totient is φ = 5191063200.

The previous prime is 18793941581. The next prime is 18793941667. The reversal of 18793941642 is 24614939781.

18793941642 is a `hidden beast` number, since 187 + 9 + 3 + 9 + 416 + 42 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5040783 + ... + 5044509.

It is an arithmetic number, because the mean of its divisors is an integer number (500923904).

Almost surely, 2^18793941642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18793941642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24044347392).

18793941642 is an abundant number, since it is smaller than the sum of its proper divisors (29294753142).

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

18793941642 is a wasteful number, since it uses less digits than its factorization.

18793941642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5064 (or 5061 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 18793941642 in words is "eighteen billion, seven hundred ninety-three million, nine hundred forty-one thousand, six hundred forty-two".