717704561042 has 24 divisors (see below), whose sum is σ = 1252574100540. Its totient is φ = 307525559040.

The previous prime is 717704561027. The next prime is 717704561051. The reversal of 717704561042 is 240165407717.

It can be written as a sum of positive squares in 2 ways, for example, as 690429708241 + 27274852801 = 830921^2 + 165151^2 .

It is a junction number, because it is equal to n+sod(n) for n = 717704560984 and 717704561002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249959 + ... + 1223882.

Almost surely, 2^717704561042 is an apocalyptic number.

717704561042 is a deficient number, since it is larger than the sum of its proper divisors (534869539498).

717704561042 is a wasteful number, since it uses less digits than its factorization.

717704561042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478826 (or 1478819 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 44.

Adding to 717704561042 its reverse (240165407717), we get a palindrome (957869968759).

The spelling of 717704561042 in words is "seven hundred seventeen billion, seven hundred four million, five hundred sixty-one thousand, forty-two".