15894648463 has 2 divisors, whose sum is σ = 15894648464. Its totient is φ = 15894648462.

The previous prime is 15894648337. The next prime is 15894648509. The reversal of 15894648463 is 36484649851.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15894648463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15894648398 and 15894648407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15894448463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7947324231 + 7947324232.

It is an arithmetic number, because the mean of its divisors is an integer number (7947324232).

Almost surely, 2^15894648463 is an apocalyptic number.

15894648463 is a deficient number, since it is larger than the sum of its proper divisors (1).

15894648463 is an equidigital number, since it uses as much as digits as its factorization.

15894648463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19906560, while the sum is 58.

The spelling of 15894648463 in words is "fifteen billion, eight hundred ninety-four million, six hundred forty-eight thousand, four hundred sixty-three".