768776542271 has 4 divisors (see below), whose sum is σ = 771099130344. Its totient is φ = 766453954200.

The previous prime is 768776542267. The next prime is 768776542279. The reversal of 768776542271 is 172245677867.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 768776542271 - 2² = 768776542267 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768776542279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1161293540 + ... + 1161294201.

It is an arithmetic number, because the mean of its divisors is an integer number (192774782586).

Almost surely, 2^768776542271 is an apocalyptic number.

768776542271 is a deficient number, since it is larger than the sum of its proper divisors (2322588073).

768776542271 is a wasteful number, since it uses less digits than its factorization.

768776542271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322588072.

The product of its digits is 55319040, while the sum is 62.

The spelling of 768776542271 in words is "seven hundred sixty-eight billion, seven hundred seventy-six million, five hundred forty-two thousand, two hundred seventy-one".