195673015631 has 4 divisors (see below), whose sum is σ = 195705146664. Its totient is φ = 195640884600.

The previous prime is 195673015609. The next prime is 195673015639. The reversal of 195673015631 is 136510376591.

195673015631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 195673015631 - 2²⁶ = 195605906767 is a prime.

It is a super-2 number, since 2×195673015631² (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 (195673015639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16056380 + ... + 16068561.

It is an arithmetic number, because the mean of its divisors is an integer number (48926286666).

Almost surely, 2^195673015631 is an apocalyptic number.

195673015631 is a deficient number, since it is larger than the sum of its proper divisors (32131033).

195673015631 is an equidigital number, since it uses as much as digits as its factorization.

195673015631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32131032.

The product of its (nonzero) digits is 510300, while the sum is 47.

The spelling of 195673015631 in words is "one hundred ninety-five billion, six hundred seventy-three million, fifteen thousand, six hundred thirty-one".