18673674386434 has 16 divisors (see below), whose sum is σ = 28020678412320. Its totient is φ = 9333448865280.

The previous prime is 18673674386377. The next prime is 18673674386459. The reversal of 18673674386434 is 43468347637681.

It is a super-2 number, since 2×18673674386434² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62761282 + ... + 63058114.

It is an arithmetic number, because the mean of its divisors is an integer number (1751292400770).

Almost surely, 2^{18673674386434} is an apocalyptic number.

18673674386434 is a deficient number, since it is larger than the sum of its proper divisors (9347004025886).

18673674386434 is a wasteful number, since it uses less digits than its factorization.

18673674386434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308145.

The product of its digits is 1170505728, while the sum is 70.

The spelling of 18673674386434 in words is "eighteen trillion, six hundred seventy-three billion, six hundred seventy-four million, three hundred eighty-six thousand, four hundred thirty-four".