1881773499072 has 56 divisors (see below), whose sum is σ = 4978960468272. Its totient is φ = 627245056000.

The previous prime is 1881773499017. The next prime is 1881773499149. The reversal of 1881773499072 is 2709943771881.

It is a super-2 number, since 2×1881773499072² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1881773498994 and 1881773499012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16655572 + ... + 16768172.

It is an arithmetic number, because the mean of its divisors is an integer number (88910008362).

Almost surely, 2^{1881773499072} is an apocalyptic number.

1881773499072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1881773499072 is an abundant number, since it is smaller than the sum of its proper divisors (3097186969200).

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

1881773499072 is a wasteful number, since it uses less digits than its factorization.

1881773499072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199657 (or 199647 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 66.

The spelling of 1881773499072 in words is "one trillion, eight hundred eighty-one billion, seven hundred seventy-three million, four hundred ninety-nine thousand, seventy-two".