2791549791 has 8 divisors (see below), whose sum is σ = 4135629360. Its totient is φ = 1861033176.

The previous prime is 2791549729. The next prime is 2791549837. The reversal of 2791549791 is 1979451972.

2791549791 is a `hidden beast` number, since 2 + 7 + 9 + 1 + 549 + 7 + 91 = 666.

It is not a de Polignac number, because 2791549791 - 2²¹ = 2789452639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2791549091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51695340 + ... + 51695393.

It is an arithmetic number, because the mean of its divisors is an integer number (516953670).

Almost surely, 2^2791549791 is an apocalyptic number.

2791549791 is a deficient number, since it is larger than the sum of its proper divisors (1344079569).

2791549791 is a wasteful number, since it uses less digits than its factorization.

2791549791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103390742 (or 103390736 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 54.

The square root of 2791549791 is about 52835.1189172505. The cubic root of 2791549791 is about 1408.0404332007.

The spelling of 2791549791 in words is "two billion, seven hundred ninety-one million, five hundred forty-nine thousand, seven hundred ninety-one".