15914543261 has 2 divisors, whose sum is σ = 15914543262. Its totient is φ = 15914543260.

The previous prime is 15914543257. The next prime is 15914543291. The reversal of 15914543261 is 16234541951.

15914543261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15877260025 + 37283236 = 126005^2 + 6106^2 .

It is an emirp because it is prime and its reverse (16234541951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15914543261 - 2² = 15914543257 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15914543201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7957271630 + 7957271631.

It is an arithmetic number, because the mean of its divisors is an integer number (7957271631).

Almost surely, 2^15914543261 is an apocalyptic number.

It is an amenable number.

15914543261 is a deficient number, since it is larger than the sum of its proper divisors (1).

15914543261 is an equidigital number, since it uses as much as digits as its factorization.

15914543261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 41.

The spelling of 15914543261 in words is "fifteen billion, nine hundred fourteen million, five hundred forty-three thousand, two hundred sixty-one".