31454645413 has 4 divisors (see below), whose sum is σ = 31471901568. Its totient is φ = 31437389260.

The previous prime is 31454645381. The next prime is 31454645489.

31454645413 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 a cyclic number.

It is not a de Polignac number, because 31454645413 - 2⁵ = 31454645381 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31454642413) 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, 8625343 + ... + 8628988.

It is an arithmetic number, because the mean of its divisors is an integer number (7867975392).

Almost surely, 2^31454645413 is an apocalyptic number.

It is an amenable number.

31454645413 is a deficient number, since it is larger than the sum of its proper divisors (17256155).

31454645413 is a wasteful number, since it uses less digits than its factorization.

31454645413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17256154.

The product of its digits is 345600, while the sum is 40.

The spelling of 31454645413 in words is "thirty-one billion, four hundred fifty-four million, six hundred forty-five thousand, four hundred thirteen".