28768386019 has 16 divisors (see below), whose sum is σ = 30516710400. Its totient is φ = 27073208736.

The previous prime is 28768386007. The next prime is 28768386029. The reversal of 28768386019 is 91068386782.

It is a cyclic number.

It is not a de Polignac number, because 28768386019 - 2²¹ = 28766288867 is a prime.

It is a super-2 number, since 2×28768386019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28768386029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573232 + ... + 621394.

It is an arithmetic number, because the mean of its divisors is an integer number (1907294400).

Almost surely, 2^28768386019 is an apocalyptic number.

28768386019 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

28768386019 is a deficient number, since it is larger than the sum of its proper divisors (1748324381).

28768386019 is a wasteful number, since it uses less digits than its factorization.

28768386019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48714.

The product of its (nonzero) digits is 6967296, while the sum is 58.

The spelling of 28768386019 in words is "twenty-eight billion, seven hundred sixty-eight million, three hundred eighty-six thousand, nineteen".