28479510115 has 64 divisors (see below), whose sum is σ = 41923031040. Its totient is φ = 18138608640.

The previous prime is 28479510113. The next prime is 28479510121. The reversal of 28479510115 is 51101597482.

It is not a de Polignac number, because 28479510115 - 2¹ = 28479510113 is a prime.

It is a super-2 number, since 2×28479510115² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28479510113) 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, 14886399 + ... + 14888311.

It is an arithmetic number, because the mean of its divisors is an integer number (655047360).

Almost surely, 2^28479510115 is an apocalyptic number.

28479510115 is a deficient number, since it is larger than the sum of its proper divisors (13443520925).

28479510115 is a wasteful number, since it uses less digits than its factorization.

28479510115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372.

The product of its (nonzero) digits is 100800, while the sum is 43.

The spelling of 28479510115 in words is "twenty-eight billion, four hundred seventy-nine million, five hundred ten thousand, one hundred fifteen".