7872286515 has 16 divisors (see below), whose sum is σ = 12809145600. Its totient is φ = 4127390432.

The previous prime is 7872286501. The next prime is 7872286517. The reversal of 7872286515 is 5156822787.

It is a cyclic number.

It is not a de Polignac number, because 7872286515 - 2⁵ = 7872286483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7872286517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4446735 + ... + 4448504.

It is an arithmetic number, because the mean of its divisors is an integer number (800571600).

Almost surely, 2^7872286515 is an apocalyptic number.

7872286515 is a deficient number, since it is larger than the sum of its proper divisors (4936859085).

7872286515 is a wasteful number, since it uses less digits than its factorization.

7872286515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8895306.

The product of its digits is 1881600, while the sum is 51.

The square root of 7872286515 is about 88725.9066733048. The cubic root of 7872286515 is about 1989.3000673894.

The spelling of 7872286515 in words is "seven billion, eight hundred seventy-two million, two hundred eighty-six thousand, five hundred fifteen".