2791830961 has 2 divisors, whose sum is σ = 2791830962. Its totient is φ = 2791830960.

The previous prime is 2791830887. The next prime is 2791830983. The reversal of 2791830961 is 1690381972.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1749832561 + 1041998400 = 41831^2 + 32280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2791830961 is a prime.

It is a super-2 number, since 2×2791830961² = 15588640229596367042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2791830161) 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 as a sum of consecutive naturals, namely, 1395915480 + 1395915481.

It is an arithmetic number, because the mean of its divisors is an integer number (1395915481).

Almost surely, 2^2791830961 is an apocalyptic number.

It is an amenable number.

2791830961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2791830961 is an equidigital number, since it uses as much as digits as its factorization.

2791830961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 2791830961 is about 52837.7796751529. The cubic root of 2791830961 is about 1408.0877050828.

The spelling of 2791830961 in words is "two billion, seven hundred ninety-one million, eight hundred thirty thousand, nine hundred sixty-one".