2791638916305 has 16 divisors (see below), whose sum is σ = 4470502938624. Its totient is φ = 1487580531200.

The previous prime is 2791638916291. The next prime is 2791638916321. The reversal of 2791638916305 is 5036198361972.

It is not a de Polignac number, because 2791638916305 - 2⁵ = 2791638916273 is a prime.

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, 80829504 + ... + 80864033.

It is an arithmetic number, because the mean of its divisors is an integer number (279406433664).

Almost surely, 2^{2791638916305} is an apocalyptic number.

It is an amenable number.

2791638916305 is a deficient number, since it is larger than the sum of its proper divisors (1678864022319).

2791638916305 is a wasteful number, since it uses less digits than its factorization.

2791638916305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161694696.

The product of its (nonzero) digits is 14696640, while the sum is 60.

The spelling of 2791638916305 in words is "two trillion, seven hundred ninety-one billion, six hundred thirty-eight million, nine hundred sixteen thousand, three hundred five".