2878629841 has 4 divisors (see below), whose sum is σ = 2878758400. Its totient is φ = 2878501284.

The previous prime is 2878629823. The next prime is 2878629851. The reversal of 2878629841 is 1489268782.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2878629841 - 2²¹ = 2876532689 is a prime.

It is a super-2 number, since 2×2878629841² = 16573019522991370562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2878629811) 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 3 ways as a sum of consecutive naturals, for example, 20961 + ... + 78718.

It is an arithmetic number, because the mean of its divisors is an integer number (719689600).

Almost surely, 2^2878629841 is an apocalyptic number.

It is an amenable number.

2878629841 is a deficient number, since it is larger than the sum of its proper divisors (128559).

2878629841 is an equidigital number, since it uses as much as digits as its factorization.

2878629841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128558.

The product of its digits is 3096576, while the sum is 55.

The square root of 2878629841 is about 53652.8642385474. The cubic root of 2878629841 is about 1422.5316605722.

The spelling of 2878629841 in words is "two billion, eight hundred seventy-eight million, six hundred twenty-nine thousand, eight hundred forty-one".