717376814361 has 15 divisors (see below), whose sum is σ = 1071648356911. Its totient is φ = 478246127688.

The previous prime is 717376814359. The next prime is 717376814381. The reversal of 717376814361 is 163418673717.

It is a happy number.

The square root of 717376814361 is 846981.

It is a perfect power (a square), and thus also a powerful number.

717376814361 is a `hidden beast` number, since 71 + 7 + 376 + 8 + 143 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11071037961 + 706305776400 = 105219^2 + 840420^2 .

It is not a de Polignac number, because 717376814361 - 2¹ = 717376814359 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 717376814298 and 717376814307.

It is not an unprimeable number, because it can be changed into a prime (717376814381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 7575775 + ... + 7669883.

Almost surely, 2^717376814361 is an apocalyptic number.

717376814361 is the 846981-st square number.

717376814361 is the 423491-st centered octagonal number.

It is an amenable number.

717376814361 is a deficient number, since it is larger than the sum of its proper divisors (354271542550).

717376814361 is an frugal number, since it uses more digits than its factorization.

717376814361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188230 (or 94112 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The spelling of 717376814361 in words is "seven hundred seventeen billion, three hundred seventy-six million, eight hundred fourteen thousand, three hundred sixty-one".