2878915757 has 2 divisors, whose sum is σ = 2878915758. Its totient is φ = 2878915756.

The previous prime is 2878915733. The next prime is 2878915759. The reversal of 2878915757 is 7575198782.

2878915757 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., 1735055716 + 1143860041 = 41654^2 + 33821^2 .

It is a cyclic number.

It is not a de Polignac number, because 2878915757 - 2¹² = 2878911661 is a prime.

Together with 2878915759, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2878915696 and 2878915705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2878915759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1439457878 + 1439457879.

It is an arithmetic number, because the mean of its divisors is an integer number (1439457879).

Almost surely, 2^2878915757 is an apocalyptic number.

It is an amenable number.

2878915757 is a deficient number, since it is larger than the sum of its proper divisors (1).

2878915757 is an equidigital number, since it uses as much as digits as its factorization.

2878915757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9878400, while the sum is 59.

The square root of 2878915757 is about 53655.5286713308. The cubic root of 2878915757 is about 1422.5787560215.

The spelling of 2878915757 in words is "two billion, eight hundred seventy-eight million, nine hundred fifteen thousand, seven hundred fifty-seven".