250866680913 has 12 divisors (see below), whose sum is σ = 363155906308. Its totient is φ = 166878489600.

The previous prime is 250866680903. The next prime is 250866680921. The reversal of 250866680913 is 319086668052.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 85487818689 + 165378862224 = 292383^2 + 406668^2 .

It is not a de Polignac number, because 250866680913 - 2⁵ = 250866680881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 250866680913.

It is not an unprimeable number, because it can be changed into a prime (250866680903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30492688 + ... + 30500913.

Almost surely, 2^250866680913 is an apocalyptic number.

It is an amenable number.

250866680913 is a deficient number, since it is larger than the sum of its proper divisors (112289225395).

250866680913 is a wasteful number, since it uses less digits than its factorization.

250866680913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60994064 (or 60994061 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 250866680913 in words is "two hundred fifty billion, eight hundred sixty-six million, six hundred eighty thousand, nine hundred thirteen".