18427386942 has 48 divisors (see below), whose sum is σ = 41510366352. Its totient is φ = 5903187840.

The previous prime is 18427386941. The next prime is 18427386979. The reversal of 18427386942 is 24968372481.

It is a super-2 number, since 2×18427386942² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18427386941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136893 + ... + 235784.

It is an arithmetic number, because the mean of its divisors is an integer number (864799299).

Almost surely, 2^18427386942 is an apocalyptic number.

18427386942 is an abundant number, since it is smaller than the sum of its proper divisors (23082979410).

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

18427386942 is a wasteful number, since it uses less digits than its factorization.

18427386942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372793 (or 372790 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 18427386942 in words is "eighteen billion, four hundred twenty-seven million, three hundred eighty-six thousand, nine hundred forty-two".