8270260866 has 60 divisors (see below), whose sum is σ = 21557083878. Its totient is φ = 2362929408.

The previous prime is 8270260849. The next prime is 8270260883. The reversal of 8270260866 is 6680620728.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8270260849) and next prime (8270260883).

It can be written as a sum of positive squares in only one way, i.e., 6759306225 + 1510954641 = 82215^2 + 38871^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 512991 + ... + 528866.

Almost surely, 2^8270260866 is an apocalyptic number.

8270260866 is an abundant number, since it is smaller than the sum of its proper divisors (13286823012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8270260866 is a wasteful number, since it uses less digits than its factorization.

8270260866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041885 (or 1041869 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 8270260866 is about 90940.9746264026. The cubic root of 8270260866 is about 2022.2727797244.

The spelling of 8270260866 in words is "eight billion, two hundred seventy million, two hundred sixty thousand, eight hundred sixty-six".