2799669878 has 16 divisors (see below), whose sum is σ = 4220267616. Its totient is φ = 1392928320.

The previous prime is 2799669877. The next prime is 2799669881. The reversal of 2799669878 is 8789669972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2799669877) by changing a digit.

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, 459500 + ... + 465552.

It is an arithmetic number, because the mean of its divisors is an integer number (263766726).

Almost surely, 2^2799669878 is an apocalyptic number.

2799669878 is a deficient number, since it is larger than the sum of its proper divisors (1420597738).

2799669878 is a wasteful number, since it uses less digits than its factorization.

2799669878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7159.

The product of its digits is 164602368, while the sum is 71.

The square root of 2799669878 is about 52911.9067696487. The cubic root of 2799669878 is about 1409.4043521323.

The spelling of 2799669878 in words is "two billion, seven hundred ninety-nine million, six hundred sixty-nine thousand, eight hundred seventy-eight".