31613746163 has 4 divisors (see below), whose sum is σ = 33277627560. Its totient is φ = 29949864768.

The previous prime is 31613746147. The next prime is 31613746211. The reversal of 31613746163 is 36164731613.

It is a happy number.

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

It is not a de Polignac number, because 31613746163 - 2⁴ = 31613746147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31613746163.

It is not an unprimeable number, because it can be changed into a prime (31613746103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831940670 + ... + 831940707.

It is an arithmetic number, because the mean of its divisors is an integer number (8319406890).

Almost surely, 2^31613746163 is an apocalyptic number.

31613746163 is a deficient number, since it is larger than the sum of its proper divisors (1663881397).

31613746163 is a wasteful number, since it uses less digits than its factorization.

31613746163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663881396.

The product of its digits is 163296, while the sum is 41.

The spelling of 31613746163 in words is "thirty-one billion, six hundred thirteen million, seven hundred forty-six thousand, one hundred sixty-three".