16961786587 has 2 divisors, whose sum is σ = 16961786588. Its totient is φ = 16961786586.

The previous prime is 16961786509. The next prime is 16961786591. The reversal of 16961786587 is 78568716961.

16961786587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16961786587 is a prime.

It is not a weakly prime, because it can be changed into another prime (16961786687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8480893293 + 8480893294.

It is an arithmetic number, because the mean of its divisors is an integer number (8480893294).

Almost surely, 2^16961786587 is an apocalyptic number.

16961786587 is a deficient number, since it is larger than the sum of its proper divisors (1).

16961786587 is an equidigital number, since it uses as much as digits as its factorization.

16961786587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 64.

The spelling of 16961786587 in words is "sixteen billion, nine hundred sixty-one million, seven hundred eighty-six thousand, five hundred eighty-seven".