16861149450293 has 2 divisors, whose sum is σ = 16861149450294. Its totient is φ = 16861149450292.

The previous prime is 16861149450199. The next prime is 16861149450371. The reversal of 16861149450293 is 39205494116861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16861149450289 + 4 = 4106233^2 + 2^2 .

It is an emirp because it is prime and its reverse (39205494116861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16861149450293 - 2²⁰ = 16861148401717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16861149452293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8430574725146 + 8430574725147.

It is an arithmetic number, because the mean of its divisors is an integer number (8430574725147).

Almost surely, 2^{16861149450293} is an apocalyptic number.

It is an amenable number.

16861149450293 is a deficient number, since it is larger than the sum of its proper divisors (1).

16861149450293 is an equidigital number, since it uses as much as digits as its factorization.

16861149450293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11197440, while the sum is 59.

The spelling of 16861149450293 in words is "sixteen trillion, eight hundred sixty-one billion, one hundred forty-nine million, four hundred fifty thousand, two hundred ninety-three".