2792797657991 has 4 divisors (see below), whose sum is σ = 3046688354184. Its totient is φ = 2538906961800.

The previous prime is 2792797657973. The next prime is 2792797658039. The reversal of 2792797657991 is 1997567972972.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2792797657991 - 2¹⁴ = 2792797641607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2792797657901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126945348080 + ... + 126945348101.

It is an arithmetic number, because the mean of its divisors is an integer number (761672088546).

Almost surely, 2^{2792797657991} is an apocalyptic number.

2792797657991 is a deficient number, since it is larger than the sum of its proper divisors (253890696193).

2792797657991 is a wasteful number, since it uses less digits than its factorization.

2792797657991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253890696192.

The product of its digits is 1890355320, while the sum is 80.

The spelling of 2792797657991 in words is "two trillion, seven hundred ninety-two billion, seven hundred ninety-seven million, six hundred fifty-seven thousand, nine hundred ninety-one".