771704270089 has 3 divisors (see below), whose sum is σ = 771705148557. Its totient is φ = 771703391622.

The previous prime is 771704270027. The next prime is 771704270173. The reversal of 771704270089 is 980072407177.

It is a happy number.

The square root of 771704270089 is 878467.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 771704270089 - 2¹⁵ = 771704237321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (771704270189) 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 2 ways as a sum of consecutive naturals, for example, 439234 + ... + 1317700.

It is an arithmetic number, because the mean of its divisors is an integer number (257235049519).

Almost surely, 2^771704270089 is an apocalyptic number.

771704270089 is the 878467-th square number.

771704270089 is the 439234-th centered octagonal number.

It is an amenable number.

771704270089 is a deficient number, since it is larger than the sum of its proper divisors (878468).

771704270089 is an frugal number, since it uses more digits than its factorization.

771704270089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756934 (or 878467 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 52.

The spelling of 771704270089 in words is "seven hundred seventy-one billion, seven hundred four million, two hundred seventy thousand, eighty-nine".