28836782860 has 12 divisors (see below), whose sum is σ = 60557244048. Its totient is φ = 11534713136.

The previous prime is 28836782857. The next prime is 28836782861. The reversal of 28836782860 is 6828763882.

It is a junction number, because it is equal to n+sod(n) for n = 28836782795 and 28836782804.

It is not an unprimeable number, because it can be changed into a prime (28836782861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720919552 + ... + 720919591.

It is an arithmetic number, because the mean of its divisors is an integer number (5046437004).

Almost surely, 2^28836782860 is an apocalyptic number.

28836782860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28836782860 is an abundant number, since it is smaller than the sum of its proper divisors (31720461188).

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

28836782860 is a wasteful number, since it uses less digits than its factorization.

28836782860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441839152 (or 1441839150 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 58.

The spelling of 28836782860 in words is "twenty-eight billion, eight hundred thirty-six million, seven hundred eighty-two thousand, eight hundred sixty".