2591290843 has 2 divisors, whose sum is σ = 2591290844. Its totient is φ = 2591290842.

The previous prime is 2591290817. The next prime is 2591290873. The reversal of 2591290843 is 3480921952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2591290843 - 2¹³ = 2591282651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2591290843.

It is not a weakly prime, because it can be changed into another prime (2591290873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1295645421 + 1295645422.

It is an arithmetic number, because the mean of its divisors is an integer number (1295645422).

Almost surely, 2^2591290843 is an apocalyptic number.

2591290843 is a deficient number, since it is larger than the sum of its proper divisors (1).

2591290843 is an equidigital number, since it uses as much as digits as its factorization.

2591290843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 2591290843 is about 50904.7231895037. The cubic root of 2591290843 is about 1373.5318046192.

The spelling of 2591290843 in words is "two billion, five hundred ninety-one million, two hundred ninety thousand, eight hundred forty-three".