16287763647901 has 2 divisors, whose sum is σ = 16287763647902. Its totient is φ = 16287763647900.

The previous prime is 16287763647853. The next prime is 16287763647931. The reversal of 16287763647901 is 10974636778261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16146292880025 + 141470767876 = 4018245^2 + 376126^2 .

It is a cyclic number.

It is not a de Polignac number, because 16287763647901 - 2¹⁹ = 16287763123613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16287763647931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8143881823950 + 8143881823951.

It is an arithmetic number, because the mean of its divisors is an integer number (8143881823951).

Almost surely, 2^{16287763647901} is an apocalyptic number.

It is an amenable number.

16287763647901 is a deficient number, since it is larger than the sum of its proper divisors (1).

16287763647901 is an equidigital number, since it uses as much as digits as its factorization.

16287763647901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128024064, while the sum is 67.

The spelling of 16287763647901 in words is "sixteen trillion, two hundred eighty-seven billion, seven hundred sixty-three million, six hundred forty-seven thousand, nine hundred one".