2851368980 has 12 divisors (see below), whose sum is σ = 5987874900. Its totient is φ = 1140547584.

The previous prime is 2851368959. The next prime is 2851368983. The reversal of 2851368980 is 898631582.

It can be written as a sum of positive squares in 2 ways, for example, as 1730726404 + 1120642576 = 41602^2 + 33476^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2851368983) 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, 71284205 + ... + 71284244.

It is an arithmetic number, because the mean of its divisors is an integer number (498989575).

Almost surely, 2^2851368980 is an apocalyptic number.

2851368980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2851368980 is an abundant number, since it is smaller than the sum of its proper divisors (3136505920).

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

2851368980 is a wasteful number, since it uses less digits than its factorization.

2851368980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142568458 (or 142568456 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 50.

The square root of 2851368980 is about 53398.2113932667. The cubic root of 2851368980 is about 1418.0269131780.

The spelling of 2851368980 in words is "two billion, eight hundred fifty-one million, three hundred sixty-eight thousand, nine hundred eighty".