2002345202549 has 2 divisors, whose sum is σ = 2002345202550. Its totient is φ = 2002345202548.

The previous prime is 2002345202531. The next prime is 2002345202591. The reversal of 2002345202549 is 9452025432002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1050563500900 + 951781701649 = 1024970^2 + 975593^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002345202549 - 2¹² = 2002345198453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002345204549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001172601274 + 1001172601275.

It is an arithmetic number, because the mean of its divisors is an integer number (1001172601275).

Almost surely, 2^{2002345202549} is an apocalyptic number.

It is an amenable number.

2002345202549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002345202549 is an equidigital number, since it uses as much as digits as its factorization.

2002345202549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 2002345202549 in words is "two trillion, two billion, three hundred forty-five million, two hundred two thousand, five hundred forty-nine".