16426642660487 has 2 divisors, whose sum is σ = 16426642660488. Its totient is φ = 16426642660486.

The previous prime is 16426642660457. The next prime is 16426642660507. The reversal of 16426642660487 is 78406624662461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16426642660487 - 2⁸ = 16426642660231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16426642660457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8213321330243 + 8213321330244.

It is an arithmetic number, because the mean of its divisors is an integer number (8213321330244).

Almost surely, 2^{16426642660487} is an apocalyptic number.

16426642660487 is a deficient number, since it is larger than the sum of its proper divisors (1).

16426642660487 is an equidigital number, since it uses as much as digits as its factorization.

16426642660487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 111476736, while the sum is 62.

The spelling of 16426642660487 in words is "sixteen trillion, four hundred twenty-six billion, six hundred forty-two million, six hundred sixty thousand, four hundred eighty-seven".