28799316819 has 24 divisors (see below), whose sum is σ = 51198786912. Its totient is φ = 15190848000.

The previous prime is 28799316773. The next prime is 28799316827. The reversal of 28799316819 is 91861399782.

It is not a de Polignac number, because 28799316819 - 2¹⁵ = 28799284051 is a prime.

It is a super-2 number, since 2×28799316819² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (28799316419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17581182 + ... + 17582819.

It is an arithmetic number, because the mean of its divisors is an integer number (2133282788).

Almost surely, 2^28799316819 is an apocalyptic number.

28799316819 is a deficient number, since it is larger than the sum of its proper divisors (22399470093).

28799316819 is a wasteful number, since it uses less digits than its factorization.

28799316819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35164027 (or 35164024 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 63.

The spelling of 28799316819 in words is "twenty-eight billion, seven hundred ninety-nine million, three hundred sixteen thousand, eight hundred nineteen".