15680978522467 has 2 divisors, whose sum is σ = 15680978522468. Its totient is φ = 15680978522466.

The previous prime is 15680978522413. The next prime is 15680978522477. The reversal of 15680978522467 is 76422587908651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15680978522467 - 2¹⁵ = 15680978489699 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15680978522396 and 15680978522405.

It is not a weakly prime, because it can be changed into another prime (15680978522477) 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, 7840489261233 + 7840489261234.

It is an arithmetic number, because the mean of its divisors is an integer number (7840489261234).

Almost surely, 2^{15680978522467} is an apocalyptic number.

15680978522467 is a deficient number, since it is larger than the sum of its proper divisors (1).

15680978522467 is an equidigital number, since it uses as much as digits as its factorization.

15680978522467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 406425600, while the sum is 70.

The spelling of 15680978522467 in words is "fifteen trillion, six hundred eighty billion, nine hundred seventy-eight million, five hundred twenty-two thousand, four hundred sixty-seven".