771040071023 has 2 divisors, whose sum is σ = 771040071024. Its totient is φ = 771040071022.

The previous prime is 771040071019. The next prime is 771040071077. The reversal of 771040071023 is 320170040177.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 771040071023 - 2² = 771040071019 is a prime.

It is a super-4 number, since 4×771040071023⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (771040071323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385520035511 + 385520035512.

It is an arithmetic number, because the mean of its divisors is an integer number (385520035512).

Almost surely, 2^771040071023 is an apocalyptic number.

771040071023 is a deficient number, since it is larger than the sum of its proper divisors (1).

771040071023 is an equidigital number, since it uses as much as digits as its factorization.

771040071023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8232, while the sum is 32.

The spelling of 771040071023 in words is "seven hundred seventy-one billion, forty million, seventy-one thousand, twenty-three".