2681181892 has 24 divisors (see below), whose sum is σ = 4857231960. Its totient is φ = 1293465600.

The previous prime is 2681181883. The next prime is 2681181901. The reversal of 2681181892 is 2981811862.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2681181883) and next prime (2681181901).

It can be written as a sum of positive squares in 4 ways, for example, as 1305810496 + 1375371396 = 36136^2 + 37086^2 .

It is a super-3 number, since 3×2681181892³ (a number of 29 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 178498 + ... + 192934.

It is an arithmetic number, because the mean of its divisors is an integer number (202384665).

Almost surely, 2^2681181892 is an apocalyptic number.

It is an amenable number.

2681181892 is a deficient number, since it is larger than the sum of its proper divisors (2176050068).

2681181892 is a wasteful number, since it uses less digits than its factorization.

2681181892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16071 (or 16069 counting only the distinct ones).

The product of its digits is 110592, while the sum is 46.

The square root of 2681181892 is about 51780.1302817982. The cubic root of 2681181892 is about 1389.2340710679.

The spelling of 2681181892 in words is "two billion, six hundred eighty-one million, one hundred eighty-one thousand, eight hundred ninety-two".