1871120288020 has 48 divisors (see below), whose sum is σ = 3946806904320. Its totient is φ = 745125099264.

The previous prime is 1871120287997. The next prime is 1871120288057. The reversal of 1871120288020 is 208820211781.

It is a super-2 number, since 2×1871120288020² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19344217 + ... + 19440703.

It is an arithmetic number, because the mean of its divisors is an integer number (82225143840).

Almost surely, 2^{1871120288020} is an apocalyptic number.

1871120288020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1871120288020 is an abundant number, since it is smaller than the sum of its proper divisors (2075686616300).

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

1871120288020 is a wasteful number, since it uses less digits than its factorization.

1871120288020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100792 (or 100790 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 40.

The spelling of 1871120288020 in words is "one trillion, eight hundred seventy-one billion, one hundred twenty million, two hundred eighty-eight thousand, twenty".