2002345028989 has 2 divisors, whose sum is σ = 2002345028990. Its totient is φ = 2002345028988.

The previous prime is 2002345028977. The next prime is 2002345029049. The reversal of 2002345028989 is 9898205432002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1330486120089 + 671858908900 = 1153467^2 + 819670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002345028989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002345022989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001172514494 + 1001172514495.

It is an arithmetic number, because the mean of its divisors is an integer number (1001172514495).

Almost surely, 2^{2002345028989} is an apocalyptic number.

It is an amenable number.

2002345028989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002345028989 is an equidigital number, since it uses as much as digits as its factorization.

2002345028989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 2002345028989 in words is "two trillion, two billion, three hundred forty-five million, twenty-eight thousand, nine hundred eighty-nine".