18613194196 has 24 divisors (see below), whose sum is σ = 32737952520. Its totient is φ = 9259550592.

The previous prime is 18613194139. The next prime is 18613194203. The reversal of 18613194196 is 69149131681.

It can be written as a sum of positive squares in 4 ways, for example, as 1091377296 + 17521816900 = 33036^2 + 132370^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1493286 + ... + 1505698.

It is an arithmetic number, because the mean of its divisors is an integer number (1364081355).

Almost surely, 2^18613194196 is an apocalyptic number.

It is an amenable number.

18613194196 is a deficient number, since it is larger than the sum of its proper divisors (14124758324).

18613194196 is a wasteful number, since it uses less digits than its factorization.

18613194196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14283 (or 14281 counting only the distinct ones).

The product of its digits is 279936, while the sum is 49.

The spelling of 18613194196 in words is "eighteen billion, six hundred thirteen million, one hundred ninety-four thousand, one hundred ninety-six".