2791047915 has 16 divisors (see below), whose sum is σ = 4961863200. Its totient is φ = 1488558816.

The previous prime is 2791047901. The next prime is 2791047929. The reversal of 2791047915 is 5197401972.

It is an interprime number because it is at equal distance from previous prime (2791047901) and next prime (2791047929).

It is not a de Polignac number, because 2791047915 - 2¹² = 2791043819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10337080 + ... + 10337349.

It is an arithmetic number, because the mean of its divisors is an integer number (310116450).

Almost surely, 2^2791047915 is an apocalyptic number.

2791047915 is a deficient number, since it is larger than the sum of its proper divisors (2170815285).

2791047915 is a wasteful number, since it uses less digits than its factorization.

2791047915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20674443 (or 20674437 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The square root of 2791047915 is about 52830.3692491355. The cubic root of 2791047915 is about 1407.9560470942.

The spelling of 2791047915 in words is "two billion, seven hundred ninety-one million, forty-seven thousand, nine hundred fifteen".