196457911731 has 8 divisors (see below), whose sum is σ = 291048758160. Its totient is φ = 130971941136.

The previous prime is 196457911571. The next prime is 196457911753. The reversal of 196457911731 is 137119754691.

196457911731 is a `hidden beast` number, since 1 + 9 + 64 + 579 + 1 + 1 + 7 + 3 + 1 = 666.

It is not a de Polignac number, because 196457911731 - 2²⁷ = 196323694003 is a prime.

It is a super-2 number, since 2×196457911731² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (196457911231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3638109450 + ... + 3638109503.

It is an arithmetic number, because the mean of its divisors is an integer number (36381094770).

Almost surely, 2^196457911731 is an apocalyptic number.

196457911731 is a deficient number, since it is larger than the sum of its proper divisors (94590846429).

196457911731 is an equidigital number, since it uses as much as digits as its factorization.

196457911731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276218962 (or 7276218956 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 54.

The spelling of 196457911731 in words is "one hundred ninety-six billion, four hundred fifty-seven million, nine hundred eleven thousand, seven hundred thirty-one".