2851814641 has 8 divisors (see below), whose sum is σ = 3078283880. Its totient is φ = 2626359552.

The previous prime is 2851814639. The next prime is 2851814657. The reversal of 2851814641 is 1464181582.

It can be written as a sum of positive squares in 4 ways, for example, as 148230625 + 2703584016 = 12175^2 + 51996^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2851814641 - 2¹ = 2851814639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2851814594 and 2851814603.

It is not an unprimeable number, because it can be changed into a prime (2851814621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247686 + ... + 258943.

It is an arithmetic number, because the mean of its divisors is an integer number (384785485).

Almost surely, 2^2851814641 is an apocalyptic number.

It is an amenable number.

2851814641 is a deficient number, since it is larger than the sum of its proper divisors (226469239).

2851814641 is a wasteful number, since it uses less digits than its factorization.

2851814641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507075.

The product of its digits is 61440, while the sum is 40.

The square root of 2851814641 is about 53402.3842258003. The cubic root of 2851814641 is about 1418.1007872101.

The spelling of 2851814641 in words is "two billion, eight hundred fifty-one million, eight hundred fourteen thousand, six hundred forty-one".