718775361 has 6 divisors (see below), whose sum is σ = 1038231090. Its totient is φ = 479183568.

The previous prime is 718775333. The next prime is 718775363. The reversal of 718775361 is 163577817.

It can be written as a sum of positive squares in only one way, i.e., 708890625 + 9884736 = 26625^2 + 3144^2 .

It is not a de Polignac number, because 718775361 - 2¹¹ = 718773313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (718775363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39931956 + ... + 39931973.

It is an arithmetic number, because the mean of its divisors is an integer number (173038515).

Almost surely, 2^718775361 is an apocalyptic number.

It is an amenable number.

718775361 is a deficient number, since it is larger than the sum of its proper divisors (319455729).

718775361 is a wasteful number, since it uses less digits than its factorization.

718775361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79863935 (or 79863932 counting only the distinct ones).

The product of its digits is 246960, while the sum is 45.

The square root of 718775361 is about 26809.9862178256. The cubic root of 718775361 is about 895.7725032448.

The spelling of 718775361 in words is "seven hundred eighteen million, seven hundred seventy-five thousand, three hundred sixty-one".