2878215975 has 36 divisors (see below), whose sum is σ = 5379353616. Its totient is φ = 1468304640.

The previous prime is 2878215973. The next prime is 2878215997. The reversal of 2878215975 is 5795128782.

2878215975 is a `hidden beast` number, since 28 + 7 + 8 + 21 + 597 + 5 = 666.

It is not a de Polignac number, because 2878215975 - 2¹ = 2878215973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878215973) 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 35 ways as a sum of consecutive naturals, for example, 272914 + ... + 283263.

Almost surely, 2^2878215975 is an apocalyptic number.

2878215975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2878215975 is a deficient number, since it is larger than the sum of its proper divisors (2501137641).

2878215975 is a wasteful number, since it uses less digits than its factorization.

2878215975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556216 (or 556208 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 54.

The square root of 2878215975 is about 53649.0072135543. The cubic root of 2878215975 is about 1422.4634839584.

The spelling of 2878215975 in words is "two billion, eight hundred seventy-eight million, two hundred fifteen thousand, nine hundred seventy-five".