791868811 has 2 divisors, whose sum is σ = 791868812. Its totient is φ = 791868810.

The previous prime is 791868797. The next prime is 791868859. The reversal of 791868811 is 118868197.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 791868811 - 2¹⁵ = 791836043 is a prime.

It is not a weakly prime, because it can be changed into another prime (791868881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395934405 + 395934406.

It is an arithmetic number, because the mean of its divisors is an integer number (395934406).

Almost surely, 2^791868811 is an apocalyptic number.

791868811 is a deficient number, since it is larger than the sum of its proper divisors (1).

791868811 is an equidigital number, since it uses as much as digits as its factorization.

791868811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 49.

The square root of 791868811 is about 28140.1636633478. The cubic root of 791868811 is about 925.1619140963.

It can be divided in two parts, 7918 and 68811, that added together give a square (76729 = 277²).

The spelling of 791868811 in words is "seven hundred ninety-one million, eight hundred sixty-eight thousand, eight hundred eleven".