2878478525215 has 8 divisors (see below), whose sum is σ = 3454208947440. Its totient is φ = 2302759675392.

The previous prime is 2878478525173. The next prime is 2878478525233. The reversal of 2878478525215 is 5125258748782.

2878478525215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2878478525215 - 2²¹ = 2878476428063 is a prime.

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, 2336130 + ... + 3348799.

It is an arithmetic number, because the mean of its divisors is an integer number (431776118430).

Almost surely, 2^{2878478525215} is an apocalyptic number.

2878478525215 is a deficient number, since it is larger than the sum of its proper divisors (575730422225).

2878478525215 is a wasteful number, since it uses less digits than its factorization.

2878478525215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5786201.

The product of its digits is 100352000, while the sum is 64.

The spelling of 2878478525215 in words is "two trillion, eight hundred seventy-eight billion, four hundred seventy-eight million, five hundred twenty-five thousand, two hundred fifteen".