878887286515 has 40 divisors (see below), whose sum is σ = 1232197769520. Its totient is φ = 601769802816.

The previous prime is 878887286513. The next prime is 878887286549. The reversal of 878887286515 is 515682788878.

It is not a de Polignac number, because 878887286515 - 2¹ = 878887286513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (878887286513) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8073316 + ... + 8181454.

It is an arithmetic number, because the mean of its divisors is an integer number (30804944238).

Almost surely, 2^878887286515 is an apocalyptic number.

878887286515 is a deficient number, since it is larger than the sum of its proper divisors (353310483005).

878887286515 is an equidigital number, since it uses as much as digits as its factorization.

878887286515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108849 (or 108828 counting only the distinct ones).

The product of its digits is 481689600, while the sum is 73.

The spelling of 878887286515 in words is "eight hundred seventy-eight billion, eight hundred eighty-seven million, two hundred eighty-six thousand, five hundred fifteen".