195276797631 has 12 divisors (see below), whose sum is σ = 282127192360. Its totient is φ = 130156513200.

The previous prime is 195276797609. The next prime is 195276797641. The reversal of 195276797631 is 136797672591.

195276797631 is a `hidden beast` number, since 1 + 9 + 527 + 6 + 7 + 9 + 76 + 31 = 666.

It is not a de Polignac number, because 195276797631 - 2⁶ = 195276797567 is a prime.

It is a super-2 number, since 2×195276797631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195276797641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2290696 + ... + 2374413.

Almost surely, 2^195276797631 is an apocalyptic number.

195276797631 is a deficient number, since it is larger than the sum of its proper divisors (86850394729).

195276797631 is a wasteful number, since it uses less digits than its factorization.

195276797631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4669766 (or 4669763 counting only the distinct ones).

The product of its digits is 30005640, while the sum is 63.

The spelling of 195276797631 in words is "one hundred ninety-five billion, two hundred seventy-six million, seven hundred ninety-seven thousand, six hundred thirty-one".