13087467781667 has 2 divisors, whose sum is σ = 13087467781668. Its totient is φ = 13087467781666.

The previous prime is 13087467781637. The next prime is 13087467781673. The reversal of 13087467781667 is 76618776478031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13087467781667 - 2¹⁰ = 13087467780643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13087467781667.

It is not a weakly prime, because it can be changed into another prime (13087467781607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6543733890833 + 6543733890834.

It is an arithmetic number, because the mean of its divisors is an integer number (6543733890834).

Almost surely, 2^{13087467781667} is an apocalyptic number.

13087467781667 is a deficient number, since it is larger than the sum of its proper divisors (1).

13087467781667 is an equidigital number, since it uses as much as digits as its factorization.

13087467781667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 398297088, while the sum is 71.

The spelling of 13087467781667 in words is "thirteen trillion, eighty-seven billion, four hundred sixty-seven million, seven hundred eighty-one thousand, six hundred sixty-seven".