717822852145 has 32 divisors (see below), whose sum is σ = 996395247360. Its totient is φ = 486255052800.

The previous prime is 717822852137. The next prime is 717822852157. The reversal of 717822852145 is 541258228717.

It is not a de Polignac number, because 717822852145 - 2³ = 717822852137 is a prime.

It is a super-2 number, since 2×717822852145² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 717822852092 and 717822852101.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 3395545 + ... + 3600745.

It is an arithmetic number, because the mean of its divisors is an integer number (31137351480).

Almost surely, 2^717822852145 is an apocalyptic number.

It is an amenable number.

717822852145 is a deficient number, since it is larger than the sum of its proper divisors (278572395215).

717822852145 is a wasteful number, since it uses less digits than its factorization.

717822852145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206425.

The product of its digits is 2508800, while the sum is 52.

The spelling of 717822852145 in words is "seven hundred seventeen billion, eight hundred twenty-two million, eight hundred fifty-two thousand, one hundred forty-five".