28490000259 has 48 divisors (see below), whose sum is σ = 44739088128. Its totient is φ = 15797179008.

The previous prime is 28490000251. The next prime is 28490000261. The reversal of 28490000259 is 95200009482.

It is not a de Polignac number, because 28490000259 - 2³ = 28490000251 is a prime.

It is a super-2 number, since 2×28490000259² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28490000251) 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, 12734689 + ... + 12736925.

It is an arithmetic number, because the mean of its divisors is an integer number (932064336).

Almost surely, 2^28490000259 is an apocalyptic number.

28490000259 is a deficient number, since it is larger than the sum of its proper divisors (16249087869).

28490000259 is a wasteful number, since it uses less digits than its factorization.

28490000259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764 (or 2727 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 28490000259 in words is "twenty-eight billion, four hundred ninety million, two hundred fifty-nine", and thus it is an aban number.