2978793311 has 8 divisors (see below), whose sum is σ = 3237363360. Its totient is φ = 2724427872.

The previous prime is 2978793287. The next prime is 2978793347. The reversal of 2978793311 is 1133978792.

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

It is a cyclic number.

It is not a de Polignac number, because 2978793311 - 2¹⁰ = 2978792287 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 2978793311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978793361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1049675 + ... + 1052508.

It is an arithmetic number, because the mean of its divisors is an integer number (404670420).

Almost surely, 2^2978793311 is an apocalyptic number.

2978793311 is a deficient number, since it is larger than the sum of its proper divisors (258570049).

2978793311 is a wasteful number, since it uses less digits than its factorization.

2978793311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102305.

The product of its digits is 571536, while the sum is 50.

The square root of 2978793311 is about 54578.3227206553. The cubic root of 2978793311 is about 1438.8431602344.

The spelling of 2978793311 in words is "two billion, nine hundred seventy-eight million, seven hundred ninety-three thousand, three hundred eleven".