28650881259 has 48 divisors (see below), whose sum is σ = 55565362944. Its totient is φ = 13738680000.

The previous prime is 28650881249. The next prime is 28650881353. The reversal of 28650881259 is 95218805682.

It is a happy number.

28650881259 is a `hidden beast` number, since 2 + 8 + 6 + 508 + 8 + 125 + 9 = 666.

It is not a de Polignac number, because 28650881259 - 2⁷ = 28650881131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28650881219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1581117 + ... + 1599134.

It is an arithmetic number, because the mean of its divisors is an integer number (1157611728).

Almost surely, 2^28650881259 is an apocalyptic number.

28650881259 is a deficient number, since it is larger than the sum of its proper divisors (26914481685).

28650881259 is a wasteful number, since it uses less digits than its factorization.

28650881259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3180288 (or 3180285 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 54.

It can be divided in two parts, 28650 and 881259, that added together give a palindrome (909909).

The spelling of 28650881259 in words is "twenty-eight billion, six hundred fifty million, eight hundred eighty-one thousand, two hundred fifty-nine".