775096221871 has 2 divisors, whose sum is σ = 775096221872. Its totient is φ = 775096221870.

The previous prime is 775096221847. The next prime is 775096221877. The reversal of 775096221871 is 178122690577.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 775096221871 - 2⁷ = 775096221743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (775096221877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387548110935 + 387548110936.

It is an arithmetic number, because the mean of its divisors is an integer number (387548110936).

Almost surely, 2^775096221871 is an apocalyptic number.

775096221871 is a deficient number, since it is larger than the sum of its proper divisors (1).

775096221871 is an equidigital number, since it uses as much as digits as its factorization.

775096221871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2963520, while the sum is 55.

The spelling of 775096221871 in words is "seven hundred seventy-five billion, ninety-six million, two hundred twenty-one thousand, eight hundred seventy-one".