913887982969 has 6 divisors (see below), whose sum is σ = 989594679966. Its totient is φ = 843588907200.

The previous prime is 913887982951. The next prime is 913887982991. The reversal of 913887982969 is 969289788319.

It can be written as a sum of positive squares in 3 ways, for example, as 120231225 + 913767751744 = 10965^2 + 955912^2 .

It is not a de Polignac number, because 913887982969 - 2¹⁵ = 913887950201 is a prime.

It is a super-2 number, since 2×913887982969² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (913887982919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2703810432 + ... + 2703810769.

It is an arithmetic number, because the mean of its divisors is an integer number (164932446661).

Almost surely, 2^913887982969 is an apocalyptic number.

It is an amenable number.

913887982969 is a deficient number, since it is larger than the sum of its proper divisors (75706696997).

913887982969 is a wasteful number, since it uses less digits than its factorization.

913887982969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5407621227 (or 5407621214 counting only the distinct ones).

The product of its digits is 846526464, while the sum is 79.

The spelling of 913887982969 in words is "nine hundred thirteen billion, eight hundred eighty-seven million, nine hundred eighty-two thousand, nine hundred sixty-nine".