2681212180 has 12 divisors (see below), whose sum is σ = 5630545620. Its totient is φ = 1072484864.

The previous prime is 2681212169. The next prime is 2681212201. The reversal of 2681212180 is 812121862.

It can be written as a sum of positive squares in 2 ways, for example, as 368179344 + 2313032836 = 19188^2 + 48094^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67030285 + ... + 67030324.

It is an arithmetic number, because the mean of its divisors is an integer number (469212135).

Almost surely, 2^2681212180 is an apocalyptic number.

2681212180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2681212180 is an abundant number, since it is smaller than the sum of its proper divisors (2949333440).

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

2681212180 is a wasteful number, since it uses less digits than its factorization.

2681212180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134060618 (or 134060616 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 2681212180 is about 51780.4227483708. The cubic root of 2681212180 is about 1389.2393022141.

The spelling of 2681212180 in words is "two billion, six hundred eighty-one million, two hundred twelve thousand, one hundred eighty".