916018052309 has 4 divisors (see below), whose sum is σ = 940775297004. Its totient is φ = 891260807616.

The previous prime is 916018052291. The next prime is 916018052353. The reversal of 916018052309 is 903250810619.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 596442656209 + 319575396100 = 772297^2 + 565310^2 .

It is a cyclic number.

It is not a de Polignac number, because 916018052309 - 2²⁸ = 915749616853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 916018052309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916018052809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12378622292 + ... + 12378622365.

It is an arithmetic number, because the mean of its divisors is an integer number (235193824251).

Almost surely, 2^916018052309 is an apocalyptic number.

It is an amenable number.

916018052309 is a deficient number, since it is larger than the sum of its proper divisors (24757244695).

916018052309 is a wasteful number, since it uses less digits than its factorization.

916018052309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24757244694.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 916018052309 in words is "nine hundred sixteen billion, eighteen million, fifty-two thousand, three hundred nine".