18649609196 has 24 divisors (see below), whose sum is σ = 33077449440. Its totient is φ = 9199568000.

The previous prime is 18649609169. The next prime is 18649609211. The reversal of 18649609196 is 69190694681.

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, 31385 + ... + 195663.

It is an arithmetic number, because the mean of its divisors is an integer number (1378227060).

Almost surely, 2^18649609196 is an apocalyptic number.

It is an amenable number.

18649609196 is a deficient number, since it is larger than the sum of its proper divisors (14427840244).

18649609196 is a wasteful number, since it uses less digits than its factorization.

18649609196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164665 (or 164663 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 59.

The spelling of 18649609196 in words is "eighteen billion, six hundred forty-nine million, six hundred nine thousand, one hundred ninety-six".