2851801086 has 24 divisors (see below), whose sum is σ = 6019595784. Its totient is φ = 900568080.

The previous prime is 2851801033. The next prime is 2851801087. The reversal of 2851801086 is 6801081582.

It is a super-2 number, since 2×2851801086² = 16265538868221558792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2851801087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 656145 + ... + 660476.

It is an arithmetic number, because the mean of its divisors is an integer number (250816491).

Almost surely, 2^2851801086 is an apocalyptic number.

2851801086 is an abundant number, since it is smaller than the sum of its proper divisors (3167794698).

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

2851801086 is a wasteful number, since it uses less digits than its factorization.

2851801086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316664 (or 1316645 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 39.

The square root of 2851801086 is about 53402.2573118403. The cubic root of 2851801086 is about 1418.0985404083.

The spelling of 2851801086 in words is "two billion, eight hundred fifty-one million, eight hundred one thousand, eighty-six".