717983380801 has 2 divisors, whose sum is σ = 717983380802. Its totient is φ = 717983380800.

The previous prime is 717983380783. The next prime is 717983380817. The reversal of 717983380801 is 108083389717.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 447292102401 + 270691278400 = 668799^2 + 520280^2 .

It is a cyclic number.

It is not a de Polignac number, because 717983380801 - 2¹³ = 717983372609 is a prime.

It is not a weakly prime, because it can be changed into another prime (717983380831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358991690400 + 358991690401.

It is an arithmetic number, because the mean of its divisors is an integer number (358991690401).

Almost surely, 2^717983380801 is an apocalyptic number.

It is an amenable number.

717983380801 is a deficient number, since it is larger than the sum of its proper divisors (1).

717983380801 is an equidigital number, since it uses as much as digits as its factorization.

717983380801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 55.

The spelling of 717983380801 in words is "seven hundred seventeen billion, nine hundred eighty-three million, three hundred eighty thousand, eight hundred one".