2851646385 has 48 divisors (see below), whose sum is σ = 5619787776. Its totient is φ = 1226921472.

The previous prime is 2851646363. The next prime is 2851646389. The reversal of 2851646385 is 5836461582.

It is a happy number.

It is not a de Polignac number, because 2851646385 - 2⁷ = 2851646257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2851646389) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101617 + ... + 126606.

It is an arithmetic number, because the mean of its divisors is an integer number (117078912).

Almost surely, 2^2851646385 is an apocalyptic number.

It is an amenable number.

2851646385 is a deficient number, since it is larger than the sum of its proper divisors (2768141391).

2851646385 is a wasteful number, since it uses less digits than its factorization.

2851646385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228262 (or 228255 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 48.

The square root of 2851646385 is about 53400.8088421889. The cubic root of 2851646385 is about 1418.0728975224.

The spelling of 2851646385 in words is "two billion, eight hundred fifty-one million, six hundred forty-six thousand, three hundred eighty-five".