196112977291 has 24 divisors (see below), whose sum is σ = 248984615664. Its totient is φ = 152745324480.

The previous prime is 196112977283. The next prime is 196112977339. The reversal of 196112977291 is 192779211691.

It is not a de Polignac number, because 196112977291 - 2³ = 196112977283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196112977271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1110601 + ... + 1275013.

It is an arithmetic number, because the mean of its divisors is an integer number (10374358986).

Almost surely, 2^196112977291 is an apocalyptic number.

196112977291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

196112977291 is a deficient number, since it is larger than the sum of its proper divisors (52871638373).

196112977291 is a wasteful number, since it uses less digits than its factorization.

196112977291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166651 (or 166644 counting only the distinct ones).

The product of its digits is 857304, while the sum is 55.

The spelling of 196112977291 in words is "one hundred ninety-six billion, one hundred twelve million, nine hundred seventy-seven thousand, two hundred ninety-one".