2591141805 has 144 divisors (see below), whose sum is σ = 5503365504. Its totient is φ = 1165933440.

The previous prime is 2591141803. The next prime is 2591141807. The reversal of 2591141805 is 5081411952.

It is an interprime number because it is at equal distance from previous prime (2591141803) and next prime (2591141807).

It is not a de Polignac number, because 2591141805 - 2¹ = 2591141803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2591141805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2591141801) 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 in 143 ways as a sum of consecutive naturals, for example, 4226679 + ... + 4227291.

It is an arithmetic number, because the mean of its divisors is an integer number (38217816).

Almost surely, 2^2591141805 is an apocalyptic number.

It is an amenable number.

2591141805 is an abundant number, since it is smaller than the sum of its proper divisors (2912223699).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2591141805 is an equidigital number, since it uses as much as digits as its factorization.

2591141805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 2591141805 is about 50903.2592767889. The cubic root of 2591141805 is about 1373.5054712368.

The spelling of 2591141805 in words is "two billion, five hundred ninety-one million, one hundred forty-one thousand, eight hundred five".