28650337245 has 12 divisors (see below), whose sum is σ = 49660584636. Its totient is φ = 15280179840.

The previous prime is 28650337211. The next prime is 28650337249. The reversal of 28650337245 is 54273305682.

28650337245 is a `hidden beast` number, since 28 + 6 + 50 + 337 + 245 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20222546436 + 8427790809 = 142206^2 + 91803^2 .

It is not a de Polignac number, because 28650337245 - 2⁶ = 28650337181 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: 636674161 = 28650337245 / (2 + 8 + 6 + 5 + 0 + 3 + 3 + 7 + 2 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 28650337245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28650337249) 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, 318337036 + ... + 318337125.

It is an arithmetic number, because the mean of its divisors is an integer number (4138382053).

Almost surely, 2^28650337245 is an apocalyptic number.

It is an amenable number.

28650337245 is a deficient number, since it is larger than the sum of its proper divisors (21010247391).

28650337245 is a wasteful number, since it uses less digits than its factorization.

28650337245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636674172 (or 636674169 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 28650337245 in words is "twenty-eight billion, six hundred fifty million, three hundred thirty-seven thousand, two hundred forty-five".