2779968913 has 8 divisors (see below), whose sum is σ = 2898478080. Its totient is φ = 2662969680.

The previous prime is 2779968889. The next prime is 2779968937. The reversal of 2779968913 is 3198699772.

It is an interprime number because it is at equal distance from previous prime (2779968889) and next prime (2779968937).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2779968913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2779968973) 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 7 ways as a sum of consecutive naturals, for example, 373723 + ... + 381088.

It is an arithmetic number, because the mean of its divisors is an integer number (362309760).

Almost surely, 2^2779968913 is an apocalyptic number.

It is an amenable number.

2779968913 is a deficient number, since it is larger than the sum of its proper divisors (118509167).

2779968913 is a wasteful number, since it uses less digits than its factorization.

2779968913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754967.

The product of its digits is 10287648, while the sum is 61.

The square root of 2779968913 is about 52725.4105057514. The cubic root of 2779968913 is about 1406.0906266977.

The spelling of 2779968913 in words is "two billion, seven hundred seventy-nine million, nine hundred sixty-eight thousand, nine hundred thirteen".