287928828099 has 24 divisors (see below), whose sum is σ = 453722943024. Its totient is φ = 174495816000.

The previous prime is 287928828071. The next prime is 287928828107. The reversal of 287928828099 is 990828829782.

It is a Cunningham number, because it is equal to 536590²-1.

It is not a de Polignac number, because 287928828099 - 2⁷ = 287928827971 is a prime.

It is a super-3 number, since 3×287928828099³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (287928828899) 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, 4799509 + ... + 4859129.

It is an arithmetic number, because the mean of its divisors is an integer number (18905122626).

Almost surely, 2^287928828099 is an apocalyptic number.

287928828099 is a deficient number, since it is larger than the sum of its proper divisors (165794114925).

287928828099 is a wasteful number, since it uses less digits than its factorization.

287928828099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108419 (or 108416 counting only the distinct ones).

The product of its (nonzero) digits is 167215104, while the sum is 72.

The spelling of 287928828099 in words is "two hundred eighty-seven billion, nine hundred twenty-eight million, eight hundred twenty-eight thousand, ninety-nine".