17768020445 has 16 divisors (see below), whose sum is σ = 24731269248. Its totient is φ = 12001936320.

The previous prime is 17768020423. The next prime is 17768020489. The reversal of 17768020445 is 54402086771.

It is not a de Polignac number, because 17768020445 - 2⁸ = 17768020189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17768020396 and 17768020405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3786146 + ... + 3790835.

It is an arithmetic number, because the mean of its divisors is an integer number (1545704328).

Almost surely, 2^17768020445 is an apocalyptic number.

It is an amenable number.

17768020445 is a deficient number, since it is larger than the sum of its proper divisors (6963248803).

17768020445 is an equidigital number, since it uses as much as digits as its factorization.

17768020445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7577060.

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 17768020445 in words is "seventeen billion, seven hundred sixty-eight million, twenty thousand, four hundred forty-five".