18649726094 has 4 divisors (see below), whose sum is σ = 27974589144. Its totient is φ = 9324863046.

The previous prime is 18649726079. The next prime is 18649726133. The reversal of 18649726094 is 49062794681.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4662431522 + ... + 4662431525.

It is an arithmetic number, because the mean of its divisors is an integer number (6993647286).

Almost surely, 2^18649726094 is an apocalyptic number.

18649726094 is a deficient number, since it is larger than the sum of its proper divisors (9324863050).

18649726094 is an equidigital number, since it uses as much as digits as its factorization.

18649726094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9324863049.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 18649726094 in words is "eighteen billion, six hundred forty-nine million, seven hundred twenty-six thousand, ninety-four".