17023780470728 has 8 divisors (see below), whose sum is σ = 31919588382630. Its totient is φ = 8511890235360.

The previous prime is 17023780470709. The next prime is 17023780470737. The reversal of 17023780470728 is 82707408732071.

It can be written as a sum of positive squares in only one way, i.e., 16993670586244 + 30109884484 = 4122338^2 + 173522^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063986279413 + ... + 1063986279428.

Almost surely, 2^{17023780470728} is an apocalyptic number.

It is an amenable number.

17023780470728 is a deficient number, since it is larger than the sum of its proper divisors (14895807911902).

17023780470728 is a wasteful number, since it uses less digits than its factorization.

17023780470728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127972558847 (or 2127972558843 counting only the distinct ones).

The product of its (nonzero) digits is 7375872, while the sum is 56.

The spelling of 17023780470728 in words is "seventeen trillion, twenty-three billion, seven hundred eighty million, four hundred seventy thousand, seven hundred twenty-eight".