2878129806 has 16 divisors (see below), whose sum is σ = 5758069248. Its totient is φ = 959075000.

The previous prime is 2878129757. The next prime is 2878129819. The reversal of 2878129806 is 6089218782.

It is a happy number.

2878129806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54270 + ... + 93281.

It is an arithmetic number, because the mean of its divisors is an integer number (359879328).

Almost surely, 2^2878129806 is an apocalyptic number.

2878129806 is an abundant number, since it is smaller than the sum of its proper divisors (2879939442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2878129806 is a wasteful number, since it uses less digits than its factorization.

2878129806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150807.

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 2878129806 is about 53648.2041265129. The cubic root of 2878129806 is about 1422.4492884196.

The spelling of 2878129806 in words is "two billion, eight hundred seventy-eight million, one hundred twenty-nine thousand, eight hundred six".