2796509878 has 16 divisors (see below), whose sum is σ = 4483908576. Its totient is φ = 1304839360.

The previous prime is 2796509867. The next prime is 2796509893. The reversal of 2796509878 is 8789056972.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739501 + ... + 743272.

It is an arithmetic number, because the mean of its divisors is an integer number (280244286).

Almost surely, 2^2796509878 is an apocalyptic number.

2796509878 is a deficient number, since it is larger than the sum of its proper divisors (1687398698).

2796509878 is a wasteful number, since it uses less digits than its factorization.

2796509878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482839.

The product of its (nonzero) digits is 15240960, while the sum is 61.

The square root of 2796509878 is about 52882.0373851084. The cubic root of 2796509878 is about 1408.8738854889.

The spelling of 2796509878 in words is "two billion, seven hundred ninety-six million, five hundred nine thousand, eight hundred seventy-eight".