19736194196 has 6 divisors (see below), whose sum is σ = 34538339850. Its totient is φ = 9868097096.

The previous prime is 19736194193. The next prime is 19736194211. The reversal of 19736194196 is 69149163791.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19610081296 + 126112900 = 140036^2 + 11230^2 .

It is a super-2 number, since 2×19736194196² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19736194193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2467024271 + ... + 2467024278.

It is an arithmetic number, because the mean of its divisors is an integer number (5756389975).

Almost surely, 2^19736194196 is an apocalyptic number.

It is an amenable number.

19736194196 is a deficient number, since it is larger than the sum of its proper divisors (14802145654).

19736194196 is a wasteful number, since it uses less digits than its factorization.

19736194196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4934048553 (or 4934048551 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 56.

The spelling of 19736194196 in words is "nineteen billion, seven hundred thirty-six million, one hundred ninety-four thousand, one hundred ninety-six".