28650285279 has 64 divisors (see below), whose sum is σ = 52962094080. Its totient is φ = 14870943360.

The previous prime is 28650285263. The next prime is 28650285299. The reversal of 28650285279 is 97258205682.

It is a happy number.

28650285279 is a `hidden beast` number, since 2 + 86 + 502 + 8 + 52 + 7 + 9 = 666.

It is not a de Polignac number, because 28650285279 - 2⁴ = 28650285263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28650285299) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2849449 + ... + 2859485.

It is an arithmetic number, because the mean of its divisors is an integer number (827532720).

Almost surely, 2^28650285279 is an apocalyptic number.

28650285279 is a deficient number, since it is larger than the sum of its proper divisors (24311808801).

28650285279 is a wasteful number, since it uses less digits than its factorization.

28650285279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11437 (or 11431 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 28650285279 in words is "twenty-eight billion, six hundred fifty million, two hundred eighty-five thousand, two hundred seventy-nine".