2851651684 has 48 divisors (see below), whose sum is σ = 5896683520. Its totient is φ = 1180824480.

The previous prime is 2851651681. The next prime is 2851651709. The reversal of 2851651684 is 4861561582.

It is not an unprimeable number, because it can be changed into a prime (2851651681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 628777 + ... + 633295.

Almost surely, 2^2851651684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2851651684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2948341760).

2851651684 is an abundant number, since it is smaller than the sum of its proper divisors (3045031836).

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

2851651684 is a wasteful number, since it uses less digits than its factorization.

2851651684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5288 (or 5286 counting only the distinct ones).

The product of its digits is 460800, while the sum is 46.

The square root of 2851651684 is about 53400.8584575192. The cubic root of 2851651684 is about 1418.0737758880.

It can be divided in two parts, 28516 and 51684, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 2851651684 in words is "two billion, eight hundred fifty-one million, six hundred fifty-one thousand, six hundred eighty-four".