2273491777591 has 2 divisors, whose sum is σ = 2273491777592. Its totient is φ = 2273491777590.

The previous prime is 2273491777559. The next prime is 2273491777657. The reversal of 2273491777591 is 1957771943722.

2273491777591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2273491777591 - 2⁵ = 2273491777559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2273491777091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136745888795 + 1136745888796.

It is an arithmetic number, because the mean of its divisors is an integer number (1136745888796).

Almost surely, 2^{2273491777591} is an apocalyptic number.

2273491777591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2273491777591 is an equidigital number, since it uses as much as digits as its factorization.

2273491777591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46675440, while the sum is 64.

The spelling of 2273491777591 in words is "two trillion, two hundred seventy-three billion, four hundred ninety-one million, seven hundred seventy-seven thousand, five hundred ninety-one".