2869978113 has 6 divisors (see below), whose sum is σ = 4145523954. Its totient is φ = 1913318736.

The previous prime is 2869978093. The next prime is 2869978121. The reversal of 2869978113 is 3118799682.

It can be written as a sum of positive squares in only one way, i.e., 2794496769 + 75481344 = 52863^2 + 8688^2 .

It is not a de Polignac number, because 2869978113 - 2⁶ = 2869978049 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2869978113.

It is not an unprimeable number, because it can be changed into a prime (2869978213) 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, 159443220 + ... + 159443237.

It is an arithmetic number, because the mean of its divisors is an integer number (690920659).

Almost surely, 2^2869978113 is an apocalyptic number.

It is an amenable number.

2869978113 is a deficient number, since it is larger than the sum of its proper divisors (1275545841).

2869978113 is a wasteful number, since it uses less digits than its factorization.

2869978113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318886463 (or 318886460 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 2869978113 is about 53572.1766684909. The cubic root of 2869978113 is about 1421.1050898034.

The spelling of 2869978113 in words is "two billion, eight hundred sixty-nine million, nine hundred seventy-eight thousand, one hundred thirteen".