18139707374 has 8 divisors (see below), whose sum is σ = 27251617968. Its totient is φ = 9055834720.

The previous prime is 18139707373. The next prime is 18139707403. The reversal of 18139707374 is 47370793181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18139707374² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18139707373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7007867 + ... + 7010454.

It is an arithmetic number, because the mean of its divisors is an integer number (3406452246).

Almost surely, 2^18139707374 is an apocalyptic number.

18139707374 is a deficient number, since it is larger than the sum of its proper divisors (9111910594).

18139707374 is a wasteful number, since it uses less digits than its factorization.

18139707374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14018970.

The product of its (nonzero) digits is 889056, while the sum is 50.

The spelling of 18139707374 in words is "eighteen billion, one hundred thirty-nine million, seven hundred seven thousand, three hundred seventy-four".