31641463713 has 4 divisors (see below), whose sum is σ = 42188618288. Its totient is φ = 21094309140.

The previous prime is 31641463709. The next prime is 31641463723. The reversal of 31641463713 is 31736414613.

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 31641463713 - 2² = 31641463709 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31641463723) 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, 5273577283 + ... + 5273577288.

It is an arithmetic number, because the mean of its divisors is an integer number (10547154572).

Almost surely, 2^31641463713 is an apocalyptic number.

It is an amenable number.

31641463713 is a deficient number, since it is larger than the sum of its proper divisors (10547154575).

31641463713 is a wasteful number, since it uses less digits than its factorization.

31641463713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10547154574.

The product of its digits is 108864, while the sum is 39.

The spelling of 31641463713 in words is "thirty-one billion, six hundred forty-one million, four hundred sixty-three thousand, seven hundred thirteen".