1887130009980 has 144 divisors (see below), whose sum is σ = 6047677883520. Its totient is φ = 475543778304.

The previous prime is 1887130009967. The next prime is 1887130009981. The reversal of 1887130009980 is 899000317881.

1887130009980 is a `hidden beast` number, since 188 + 71 + 300 + 0 + 9 + 98 + 0 = 666.

It is a super-2 number, since 2×1887130009980² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1887130009981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3600609 + ... + 4091288.

It is an arithmetic number, because the mean of its divisors is an integer number (41997763080).

Almost surely, 2^{1887130009980} is an apocalyptic number.

1887130009980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1887130009980 is an abundant number, since it is smaller than the sum of its proper divisors (4160547873540).

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

1887130009980 is a wasteful number, since it uses less digits than its factorization.

1887130009980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7691988 (or 7691983 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 54.

The spelling of 1887130009980 in words is "one trillion, eight hundred eighty-seven billion, one hundred thirty million, nine thousand, nine hundred eighty".