19101531196 has 12 divisors (see below), whose sum is σ = 36466559640. Its totient is φ = 8682514160.

The previous prime is 19101531191. The next prime is 19101531199. The reversal of 19101531196 is 69113510191.

It is a super-2 number, since 2×19101531196² (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 (19101531191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217062811 + ... + 217062898.

It is an arithmetic number, because the mean of its divisors is an integer number (3038879970).

Almost surely, 2^19101531196 is an apocalyptic number.

It is an amenable number.

19101531196 is a deficient number, since it is larger than the sum of its proper divisors (17365028444).

19101531196 is a wasteful number, since it uses less digits than its factorization.

19101531196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434125724 (or 434125722 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 37.

The spelling of 19101531196 in words is "nineteen billion, one hundred one million, five hundred thirty-one thousand, one hundred ninety-six".