1881140000 has 60 divisors (see below), whose sum is σ = 4627935774. Its totient is φ = 752448000.

The previous prime is 1881139999. The next prime is 1881140029. The reversal of 1881140000 is 411881.

It can be written as a sum of positive squares in 5 ways, for example, as 94556176 + 1786583824 = 9724^2 + 42268^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 27029 + ... + 67028.

Almost surely, 2^1881140000 is an apocalyptic number.

1881140000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1881140000 is an abundant number, since it is smaller than the sum of its proper divisors (2746795774).

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

1881140000 is an frugal number, since it uses more digits than its factorization.

1881140000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94087 (or 94064 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 1881140000 is about 43372.1108547878. The cubic root of 1881140000 is about 1234.4505743399.

Adding to 1881140000 its reverse (411881), we get a palindrome (1881551881).

The spelling of 1881140000 in words is "one billion, eight hundred eighty-one million, one hundred forty thousand".