2851425081 has 12 divisors (see below), whose sum is σ = 4133282608. Its totient is φ = 1894231224.

The previous prime is 2851425047. The next prime is 2851425089. The reversal of 2851425081 is 1805241582.

2851425081 is a `hidden beast` number, since 2 + 8 + 5 + 142 + 508 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-2851425081 is a prime.

It is a super-2 number, since 2×2851425081² = 16261249985111713122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2851425089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 557215 + ... + 562308.

Almost surely, 2^2851425081 is an apocalyptic number.

It is an amenable number.

2851425081 is a deficient number, since it is larger than the sum of its proper divisors (1281857527).

2851425081 is a wasteful number, since it uses less digits than its factorization.

2851425081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119812 (or 1119809 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 2851425081 is about 53398.7366985400. The cubic root of 2851425081 is about 1418.0362130624.

The spelling of 2851425081 in words is "two billion, eight hundred fifty-one million, four hundred twenty-five thousand, eighty-one".