1881771674860 has 96 divisors (see below), whose sum is σ = 4927418915328. Its totient is φ = 586454983680.

The previous prime is 1881771674801. The next prime is 1881771674863. The reversal of 1881771674860 is 684761771881.

It is a junction number, because it is equal to n+sod(n) for n = 1881771674792 and 1881771674801.

It is not an unprimeable number, because it can be changed into a prime (1881771674863) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 13400532 + ... + 13540228.

It is an arithmetic number, because the mean of its divisors is an integer number (51327280368).

Almost surely, 2^{1881771674860} is an apocalyptic number.

1881771674860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1881771674860 is an abundant number, since it is smaller than the sum of its proper divisors (3045647240468).

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

1881771674860 is a wasteful number, since it uses less digits than its factorization.

1881771674860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148471 (or 148469 counting only the distinct ones).

The product of its (nonzero) digits is 25288704, while the sum is 64.

The spelling of 1881771674860 in words is "one trillion, eight hundred eighty-one billion, seven hundred seventy-one million, six hundred seventy-four thousand, eight hundred sixty".