250317728641 has 4 divisors (see below), whose sum is σ = 265042300932. Its totient is φ = 235593156352.

The previous prime is 250317728627. The next prime is 250317728657. The reversal of 250317728641 is 146827713052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 114466512241 + 135851216400 = 338329^2 + 368580^2 .

It is a cyclic number.

It is not a de Polignac number, because 250317728641 - 2⁷ = 250317728513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 250317728591 and 250317728600.

It is not an unprimeable number, because it can be changed into a prime (250317728041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7362286120 + ... + 7362286153.

It is an arithmetic number, because the mean of its divisors is an integer number (66260575233).

Almost surely, 2^250317728641 is an apocalyptic number.

It is an amenable number.

250317728641 is a deficient number, since it is larger than the sum of its proper divisors (14724572291).

250317728641 is a wasteful number, since it uses less digits than its factorization.

250317728641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14724572290.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 250317728641 in words is "two hundred fifty billion, three hundred seventeen million, seven hundred twenty-eight thousand, six hundred forty-one".