31964246913 has 4 divisors (see below), whose sum is σ = 42618995888. Its totient is φ = 21309497940.

The previous prime is 31964246911. The next prime is 31964246999.

31964246913 is nontrivially palindromic in base 10.

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 31964246913 - 2¹ = 31964246911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31964246911) 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, 5327374483 + ... + 5327374488.

It is an arithmetic number, because the mean of its divisors is an integer number (10654748972).

Almost surely, 2^31964246913 is an apocalyptic number.

It is an amenable number.

31964246913 is a deficient number, since it is larger than the sum of its proper divisors (10654748975).

31964246913 is a wasteful number, since it uses less digits than its factorization.

31964246913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10654748974.

The product of its digits is 839808, while the sum is 48.

The spelling of 31964246913 in words is "thirty-one billion, nine hundred sixty-four million, two hundred forty-six thousand, nine hundred thirteen".