2228317786515 has 16 divisors (see below), whose sum is σ = 3576699227808. Its totient is φ = 1184639229696.

The previous prime is 2228317786511. The next prime is 2228317786549. The reversal of 2228317786515 is 5156877138222.

It is not a de Polignac number, because 2228317786515 - 2² = 2228317786511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2228317786511) 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 15 ways as a sum of consecutive naturals, for example, 237302844 + ... + 237312233.

It is an arithmetic number, because the mean of its divisors is an integer number (223543701738).

Almost surely, 2^{2228317786515} is an apocalyptic number.

2228317786515 is a deficient number, since it is larger than the sum of its proper divisors (1348381441293).

2228317786515 is a wasteful number, since it uses less digits than its factorization.

2228317786515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474615398.

The product of its digits is 11289600, while the sum is 57.

The spelling of 2228317786515 in words is "two trillion, two hundred twenty-eight billion, three hundred seventeen million, seven hundred eighty-six thousand, five hundred fifteen".