28915699368 has 16 divisors (see below), whose sum is σ = 72289248480. Its totient is φ = 9638566448.

The previous prime is 28915699361. The next prime is 28915699403. The reversal of 28915699368 is 86399651982.

It is a super-2 number, since 2×28915699368² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28915699299 and 28915699308.

It is not an unprimeable number, because it can be changed into a prime (28915699361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602410380 + ... + 602410427.

It is an arithmetic number, because the mean of its divisors is an integer number (4518078030).

Almost surely, 2^28915699368 is an apocalyptic number.

It is an amenable number.

28915699368 is an abundant number, since it is smaller than the sum of its proper divisors (43373549112).

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

28915699368 is a wasteful number, since it uses less digits than its factorization.

28915699368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204820816 (or 1204820812 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 66.

The spelling of 28915699368 in words is "twenty-eight billion, nine hundred fifteen million, six hundred ninety-nine thousand, three hundred sixty-eight".