15502984243 has 2 divisors, whose sum is σ = 15502984244. Its totient is φ = 15502984242.

The previous prime is 15502984187. The next prime is 15502984271. The reversal of 15502984243 is 34248920551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15502984243 - 2²¹ = 15500887091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15502984243.

It is not a weakly prime, because it can be changed into another prime (15502984283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7751492121 + 7751492122.

It is an arithmetic number, because the mean of its divisors is an integer number (7751492122).

Almost surely, 2^15502984243 is an apocalyptic number.

15502984243 is a deficient number, since it is larger than the sum of its proper divisors (1).

15502984243 is an equidigital number, since it uses as much as digits as its factorization.

15502984243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 15502984243 in words is "fifteen billion, five hundred two million, nine hundred eighty-four thousand, two hundred forty-three".