287728465336 has 32 divisors (see below), whose sum is σ = 581104742400. Its totient is φ = 132771565440.

The previous prime is 287728465313. The next prime is 287728465361. The reversal of 287728465336 is 633564827782.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262146 + ... + 802606.

It is an arithmetic number, because the mean of its divisors is an integer number (18159523200).

Almost surely, 2^287728465336 is an apocalyptic number.

287728465336 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

287728465336 is an abundant number, since it is smaller than the sum of its proper divisors (293376277064).

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

287728465336 is a wasteful number, since it uses less digits than its factorization.

287728465336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545599 (or 545595 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 61.

The spelling of 287728465336 in words is "two hundred eighty-seven billion, seven hundred twenty-eight million, four hundred sixty-five thousand, three hundred thirty-six".