287997515716 has 27 divisors (see below), whose sum is σ = 507641149197. Its totient is φ = 142964625600.

The previous prime is 287997515713. The next prime is 287997515731. The reversal of 287997515716 is 617515799782.

The square root of 287997515716 is 536654.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 145946920900 + 142050594816 = 382030^2 + 376896^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (287997515713) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 162068620 + ... + 162070396.

Almost surely, 2^287997515716 is an apocalyptic number.

287997515716 is the 536654-th square number.

It is an amenable number.

287997515716 is a deficient number, since it is larger than the sum of its proper divisors (219643633481).

287997515716 is an frugal number, since it uses more digits than its factorization.

287997515716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860 (or 1930 counting only the distinct ones).

The product of its digits is 66679200, while the sum is 67.

The spelling of 287997515716 in words is "two hundred eighty-seven billion, nine hundred ninety-seven million, five hundred fifteen thousand, seven hundred sixteen".