1881981863080 has 64 divisors (see below), whose sum is σ = 4624504073280. Its totient is φ = 683602368000.

The previous prime is 1881981863071. The next prime is 1881981863081. The reversal of 1881981863080 is 803681891881.

It is not an unprimeable number, because it can be changed into a prime (1881981863081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1958821 + ... + 2756980.

It is an arithmetic number, because the mean of its divisors is an integer number (72257876145).

Almost surely, 2^{1881981863080} is an apocalyptic number.

1881981863080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1881981863080 is an abundant number, since it is smaller than the sum of its proper divisors (2742522210200).

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

1881981863080 is a wasteful number, since it uses less digits than its factorization.

1881981863080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4716730 (or 4716726 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 61.

The spelling of 1881981863080 in words is "one trillion, eight hundred eighty-one billion, nine hundred eighty-one million, eight hundred sixty-three thousand, eighty".