2878215973 has 2 divisors, whose sum is σ = 2878215974. Its totient is φ = 2878215972.

The previous prime is 2878215919. The next prime is 2878215997. The reversal of 2878215973 is 3795128782.

2878215973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2588977924 + 289238049 = 50882^2 + 17007^2 .

It is a cyclic number.

It is not a de Polignac number, because 2878215973 - 2¹³ = 2878207781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2878215973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2878215773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1439107986 + 1439107987.

It is an arithmetic number, because the mean of its divisors is an integer number (1439107987).

Almost surely, 2^2878215973 is an apocalyptic number.

It is an amenable number.

2878215973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2878215973 is an equidigital number, since it uses as much as digits as its factorization.

2878215973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 52.

The square root of 2878215973 is about 53649.0071949146. The cubic root of 2878215973 is about 1422.4634836289.

The spelling of 2878215973 in words is "two billion, eight hundred seventy-eight million, two hundred fifteen thousand, nine hundred seventy-three".