196137994371 has 32 divisors (see below), whose sum is σ = 286202273280. Its totient is φ = 118492416000.

The previous prime is 196137994291. The next prime is 196137994397. The reversal of 196137994371 is 173499731691.

It is not a de Polignac number, because 196137994371 - 2⁹ = 196137993859 is a prime.

It is a super-2 number, since 2×196137994371² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (196137994571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40851171 + ... + 40855971.

It is an arithmetic number, because the mean of its divisors is an integer number (8943821040).

Almost surely, 2^196137994371 is an apocalyptic number.

196137994371 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

196137994371 is a deficient number, since it is larger than the sum of its proper divisors (90064278909).

196137994371 is a wasteful number, since it uses less digits than its factorization.

196137994371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8507.

The product of its digits is 7715736, while the sum is 60.

The spelling of 196137994371 in words is "one hundred ninety-six billion, one hundred thirty-seven million, nine hundred ninety-four thousand, three hundred seventy-one".