7775287273 has 12 divisors (see below), whose sum is σ = 8624752668. Its totient is φ = 7002128640.

The previous prime is 7775287259. The next prime is 7775287277. The reversal of 7775287273 is 3727825777.

It can be written as a sum of positive squares in 6 ways, for example, as 1722914064 + 6052373209 = 41508^2 + 77797^2 .

It is not a de Polignac number, because 7775287273 - 2²⁵ = 7741732841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7775287277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 554140 + ... + 567997.

It is an arithmetic number, because the mean of its divisors is an integer number (718729389).

Almost surely, 2^7775287273 is an apocalyptic number.

It is an amenable number.

7775287273 is a deficient number, since it is larger than the sum of its proper divisors (849465395).

7775287273 is a wasteful number, since it uses less digits than its factorization.

7775287273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122204 (or 1122191 counting only the distinct ones).

The product of its digits is 8067360, while the sum is 55.

The square root of 7775287273 is about 88177.5894034306. The cubic root of 7775287273 is about 1981.0958183541.

It can be divided in two parts, 77752 and 87273, that added together give a triangular number (165025 = T₅₇₄).

The spelling of 7775287273 in words is "seven billion, seven hundred seventy-five million, two hundred eighty-seven thousand, two hundred seventy-three".