18495449134 has 4 divisors (see below), whose sum is σ = 27743173704. Its totient is φ = 9247724566.

The previous prime is 18495449107. The next prime is 18495449153. The reversal of 18495449134 is 43194459481.

It is a happy number.

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

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, 4623862282 + ... + 4623862285.

It is an arithmetic number, because the mean of its divisors is an integer number (6935793426).

Almost surely, 2^18495449134 is an apocalyptic number.

18495449134 is a deficient number, since it is larger than the sum of its proper divisors (9247724570).

18495449134 is an equidigital number, since it uses as much as digits as its factorization.

18495449134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9247724569.

The product of its digits is 2488320, while the sum is 52.

The spelling of 18495449134 in words is "eighteen billion, four hundred ninety-five million, four hundred forty-nine thousand, one hundred thirty-four".