2851421130 has 80 divisors (see below), whose sum is σ = 7676535240. Its totient is φ = 759449088.

The previous prime is 2851421129. The next prime is 2851421161. The reversal of 2851421130 is 311241582.

It can be written as a sum of positive squares in 4 ways, for example, as 2089495521 + 761925609 = 45711^2 + 27603^2 .

It is a super-2 number, since 2×2851421130² = 16261204921220953800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2851421094 and 2851421103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 886966 + ... + 890174.

Almost surely, 2^2851421130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2851421130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3838267620).

2851421130 is an abundant number, since it is smaller than the sum of its proper divisors (4825114110).

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

2851421130 is a wasteful number, since it uses less digits than its factorization.

2851421130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325 (or 4316 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 2851421130 is about 53398.6997032699. The cubic root of 2851421130 is about 1418.0355581076.

The spelling of 2851421130 in words is "two billion, eight hundred fifty-one million, four hundred twenty-one thousand, one hundred thirty".