1250468865 has 12 divisors (see below), whose sum is σ = 2167479444. Its totient is φ = 666916704.

The previous prime is 1250468851. The next prime is 1250468911. The reversal of 1250468865 is 5688640521.

1250468865 is a `hidden beast` number, since 1 + 2 + 504 + 6 + 88 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 902161296 + 348307569 = 30036^2 + 18663^2 .

It is not a de Polignac number, because 1250468865 - 2²⁶ = 1183360001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 27788197 = 1250468865 / (1 + 2 + 5 + 0 + 4 + 6 + 8 + 8 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1250468865.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13894054 + ... + 13894143.

It is an arithmetic number, because the mean of its divisors is an integer number (180623287).

Almost surely, 2^1250468865 is an apocalyptic number.

1250468865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1250468865 is a deficient number, since it is larger than the sum of its proper divisors (917010579).

1250468865 is a wasteful number, since it uses less digits than its factorization.

1250468865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27788208 (or 27788205 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 1250468865 is about 35361.9691900776. The cubic root of 1250468865 is about 1077.3520133825.

The spelling of 1250468865 in words is "one billion, two hundred fifty million, four hundred sixty-eight thousand, eight hundred sixty-five".