31640101617 has 4 divisors (see below), whose sum is σ = 42186802160. Its totient is φ = 21093401076.

The previous prime is 31640101579. The next prime is 31640101621. The reversal of 31640101617 is 71610104613.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31640101617 - 2⁶ = 31640101553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31640101627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5273350267 + ... + 5273350272.

It is an arithmetic number, because the mean of its divisors is an integer number (10546700540).

Almost surely, 2^31640101617 is an apocalyptic number.

It is an amenable number.

31640101617 is a deficient number, since it is larger than the sum of its proper divisors (10546700543).

31640101617 is a wasteful number, since it uses less digits than its factorization.

31640101617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10546700542.

The product of its (nonzero) digits is 3024, while the sum is 30.

The spelling of 31640101617 in words is "thirty-one billion, six hundred forty million, one hundred one thousand, six hundred seventeen".