18334643374 has 16 divisors (see below), whose sum is σ = 28536460848. Its totient is φ = 8827598592.

The previous prime is 18334643363. The next prime is 18334643377. The reversal of 18334643374 is 47334643381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18334643377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1269964 + ... + 1284319.

It is an arithmetic number, because the mean of its divisors is an integer number (1783528803).

Almost surely, 2^18334643374 is an apocalyptic number.

18334643374 is a deficient number, since it is larger than the sum of its proper divisors (10201817474).

18334643374 is a wasteful number, since it uses less digits than its factorization.

18334643374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554419.

The product of its digits is 1741824, while the sum is 46.

The spelling of 18334643374 in words is "eighteen billion, three hundred thirty-four million, six hundred forty-three thousand, three hundred seventy-four".