18399627437374 has 8 divisors (see below), whose sum is σ = 27599469897960. Its totient is φ = 9199804138056.

The previous prime is 18399627437333. The next prime is 18399627437413. The reversal of 18399627437374 is 47373472699381.

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

It is a super-2 number, since 2×18399627437374² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18399627437297 and 18399627437306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2083869 + ... + 6414184.

It is an arithmetic number, because the mean of its divisors is an integer number (3449933737245).

Almost surely, 2^{18399627437374} is an apocalyptic number.

18399627437374 is a deficient number, since it is larger than the sum of its proper divisors (9199842460586).

18399627437374 is a wasteful number, since it uses less digits than its factorization.

18399627437374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9580634.

The product of its digits is 1152216576, while the sum is 73.

The spelling of 18399627437374 in words is "eighteen trillion, three hundred ninety-nine billion, six hundred twenty-seven million, four hundred thirty-seven thousand, three hundred seventy-four".