18838263042374 has 12 divisors (see below), whose sum is σ = 29822901188724. Its totient is φ = 8923387756572.

The previous prime is 18838263042373. The next prime is 18838263042377. The reversal of 18838263042374 is 47324036283881.

It is a super-2 number, since 2×18838263042374² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18838263042373) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13045887812 + ... + 13045889255.

It is an arithmetic number, because the mean of its divisors is an integer number (2485241765727).

Almost surely, 2^{18838263042374} is an apocalyptic number.

18838263042374 is a deficient number, since it is larger than the sum of its proper divisors (10984638146350).

18838263042374 is a wasteful number, since it uses less digits than its factorization.

18838263042374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26091777107 (or 26091777088 counting only the distinct ones).

The product of its (nonzero) digits is 37158912, while the sum is 59.

The spelling of 18838263042374 in words is "eighteen trillion, eight hundred thirty-eight billion, two hundred sixty-three million, forty-two thousand, three hundred seventy-four".