31159982917 has 8 divisors (see below), whose sum is σ = 35683941312. Its totient is φ = 26654157600.

The previous prime is 31159982911. The next prime is 31159982933. The reversal of 31159982917 is 71928995113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-31159982917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31159982911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4529584 + ... + 4536457.

It is an arithmetic number, because the mean of its divisors is an integer number (4460492664).

Almost surely, 2^31159982917 is an apocalyptic number.

It is an amenable number.

31159982917 is a deficient number, since it is larger than the sum of its proper divisors (4523958395).

31159982917 is an equidigital number, since it uses as much as digits as its factorization.

31159982917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9066539.

The product of its digits is 1224720, while the sum is 55.

The spelling of 31159982917 in words is "thirty-one billion, one hundred fifty-nine million, nine hundred eighty-two thousand, nine hundred seventeen".