16989259970803 has 2 divisors, whose sum is σ = 16989259970804. Its totient is φ = 16989259970802.

The previous prime is 16989259970723. The next prime is 16989259970807. The reversal of 16989259970803 is 30807995298961.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16989259970803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16989259970803.

It is not a weakly prime, because it can be changed into another prime (16989259970807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8494629985401 + 8494629985402.

It is an arithmetic number, because the mean of its divisors is an integer number (8494629985402).

Almost surely, 2^{16989259970803} is an apocalyptic number.

16989259970803 is a deficient number, since it is larger than the sum of its proper divisors (1).

16989259970803 is an equidigital number, since it uses as much as digits as its factorization.

16989259970803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 529079040, while the sum is 76.

The spelling of 16989259970803 in words is "sixteen trillion, nine hundred eighty-nine billion, two hundred fifty-nine million, nine hundred seventy thousand, eight hundred three".