18384371474 has 8 divisors (see below), whose sum is σ = 31516065408. Its totient is φ = 7879016340.

The previous prime is 18384371441. The next prime is 18384371483. The reversal of 18384371474 is 47417348381.

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

It is a super-2 number, since 2×18384371474² (a number of 21 digits) contains 22 as substring.

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, 656584682 + ... + 656584709.

It is an arithmetic number, because the mean of its divisors is an integer number (3939508176).

Almost surely, 2^18384371474 is an apocalyptic number.

18384371474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18384371474 is a deficient number, since it is larger than the sum of its proper divisors (13131693934).

18384371474 is a wasteful number, since it uses less digits than its factorization.

18384371474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313169400.

The product of its digits is 1806336, while the sum is 50.

The spelling of 18384371474 in words is "eighteen billion, three hundred eighty-four million, three hundred seventy-one thousand, four hundred seventy-four".