916925713265813 has 4 divisors (see below), whose sum is σ = 916925778113280. Its totient is φ = 916925648418348.

The previous prime is 916925713265777. The next prime is 916925713265819. The reversal of 916925713265813 is 318562317529619.

916925713265813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 916925713265813 - 2²⁸ = 916925444830357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916925713265819) 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, 1176023 + ... + 42839636.

It is an arithmetic number, because the mean of its divisors is an integer number (229231444528320).

Almost surely, 2^{916925713265813} is an apocalyptic number.

It is an amenable number.

916925713265813 is a deficient number, since it is larger than the sum of its proper divisors (64847467).

916925713265813 is a wasteful number, since it uses less digits than its factorization.

916925713265813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64847466.

The product of its digits is 146966400, while the sum is 68.

The spelling of 916925713265813 in words is "nine hundred sixteen trillion, nine hundred twenty-five billion, seven hundred thirteen million, two hundred sixty-five thousand, eight hundred thirteen".