28879497882 has 24 divisors (see below), whose sum is σ = 62577147360. Its totient is φ = 9625745160.

The previous prime is 28879497869. The next prime is 28879497893.

28879497882 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 28879497882.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203907 + ... + 315177.

It is an arithmetic number, because the mean of its divisors is an integer number (2607381140).

Almost surely, 2^28879497882 is an apocalyptic number.

28879497882 is an abundant number, since it is smaller than the sum of its proper divisors (33697649478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28879497882 is a wasteful number, since it uses less digits than its factorization.

28879497882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125698 (or 125695 counting only the distinct ones).

The product of its digits is 260112384, while the sum is 72.

The spelling of 28879497882 in words is "twenty-eight billion, eight hundred seventy-nine million, four hundred ninety-seven thousand, eight hundred eighty-two".