1869882472989 has 48 divisors (see below), whose sum is σ = 2857398004800. Its totient is φ = 1208194515360.

The previous prime is 1869882472937. The next prime is 1869882473027. The reversal of 1869882472989 is 9892742889681.

1869882472989 is a `hidden beast` number, since 1 + 8 + 6 + 9 + 88 + 247 + 298 + 9 = 666.

It is not a de Polignac number, because 1869882472989 - 2²⁰ = 1869881424413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1869882472189) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7913887 + ... + 8146739.

It is an arithmetic number, because the mean of its divisors is an integer number (59529125100).

Almost surely, 2^{1869882472989} is an apocalyptic number.

It is an amenable number.

1869882472989 is a deficient number, since it is larger than the sum of its proper divisors (987515531811).

1869882472989 is an equidigital number, since it uses as much as digits as its factorization.

1869882472989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233063 (or 232986 counting only the distinct ones).

The product of its digits is 2006581248, while the sum is 81.

The spelling of 1869882472989 in words is "one trillion, eight hundred sixty-nine billion, eight hundred eighty-two million, four hundred seventy-two thousand, nine hundred eighty-nine".