31455455413 has 4 divisors (see below), whose sum is σ = 31760848288. Its totient is φ = 31150062540.

The previous prime is 31455455371. The next prime is 31455455459.

31455455413 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 a de Polignac number, because none of the positive numbers 2^k-31455455413 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 (31455455483) 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 3 ways as a sum of consecutive naturals, for example, 152696283 + ... + 152696488.

It is an arithmetic number, because the mean of its divisors is an integer number (7940212072).

Almost surely, 2^31455455413 is an apocalyptic number.

It is an amenable number.

31455455413 is a deficient number, since it is larger than the sum of its proper divisors (305392875).

31455455413 is a wasteful number, since it uses less digits than its factorization.

31455455413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305392874.

The product of its digits is 360000, while the sum is 40.

The spelling of 31455455413 in words is "thirty-one billion, four hundred fifty-five million, four hundred fifty-five thousand, four hundred thirteen".