2851381516 has 12 divisors (see below), whose sum is σ = 4991491288. Its totient is φ = 1425241152.

The previous prime is 2851381459. The next prime is 2851381517. The reversal of 2851381516 is 6151831582.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2851381517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97926 + ... + 123661.

Almost surely, 2^2851381516 is an apocalyptic number.

It is an amenable number.

2851381516 is a deficient number, since it is larger than the sum of its proper divisors (2140109772).

2851381516 is a wasteful number, since it uses less digits than its factorization.

2851381516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224808 (or 224806 counting only the distinct ones).

The product of its digits is 57600, while the sum is 40.

The square root of 2851381516 is about 53398.3287753465. The cubic root of 2851381516 is about 1418.0289912861.

The spelling of 2851381516 in words is "two billion, eight hundred fifty-one million, three hundred eighty-one thousand, five hundred sixteen".