2856129506 has 16 divisors (see below), whose sum is σ = 4543965216. Its totient is φ = 1341761856.

The previous prime is 2856129491. The next prime is 2856129547. The reversal of 2856129506 is 6059216582.

2856129506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 51596 + ... + 91511.

It is an arithmetic number, because the mean of its divisors is an integer number (283997826).

Almost surely, 2^2856129506 is an apocalyptic number.

2856129506 is a deficient number, since it is larger than the sum of its proper divisors (1687835710).

2856129506 is a wasteful number, since it uses less digits than its factorization.

2856129506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143713.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 2856129506 is about 53442.7685098742. The cubic root of 2856129506 is about 1418.8156338128.

The spelling of 2856129506 in words is "two billion, eight hundred fifty-six million, one hundred twenty-nine thousand, five hundred six".