2821997017189 has 12 divisors (see below), whose sum is σ = 3282934947264. Its totient is φ = 2418704474424.

The previous prime is 2821997017183. The next prime is 2821997017199. The reversal of 2821997017189 is 9817107991282.

It is not a de Polignac number, because 2821997017189 - 2¹³ = 2821997008997 is a prime.

It is a super-2 number, since 2×2821997017189² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2821997017189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821997017183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 985789 + ... + 2572114.

It is an arithmetic number, because the mean of its divisors is an integer number (273577912272).

Almost surely, 2^{2821997017189} is an apocalyptic number.

It is an amenable number.

2821997017189 is a deficient number, since it is larger than the sum of its proper divisors (460937930075).

2821997017189 is a wasteful number, since it uses less digits than its factorization.

2821997017189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3574104 (or 3574097 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 64.

The spelling of 2821997017189 in words is "two trillion, eight hundred twenty-one billion, nine hundred ninety-seven million, seventeen thousand, one hundred eighty-nine".