2851807616 has 64 divisors (see below), whose sum is σ = 6500280480. Its totient is φ = 1220825088.

The previous prime is 2851807591. The next prime is 2851807633. The reversal of 2851807616 is 6167081582.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

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, 1429916 + ... + 1431908.

Almost surely, 2^2851807616 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 2851807616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3250140240).

2851807616 is an abundant number, since it is smaller than the sum of its proper divisors (3648472864).

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

2851807616 is a wasteful number, since it uses less digits than its factorization.

2851807616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611 (or 3599 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 2851807616 is about 53402.3184515429. The cubic root of 2851807616 is about 1418.0996227858.

The spelling of 2851807616 in words is "two billion, eight hundred fifty-one million, eight hundred seven thousand, six hundred sixteen".