718268953 has 6 divisors (see below), whose sum is σ = 723144254. Its totient is φ = 713426304.

The previous prime is 718268927. The next prime is 718268981. The reversal of 718268953 is 359862817.

It can be written as a sum of positive squares in 3 ways, for example, as 20675209 + 697593744 = 4547^2 + 26412^2 .

It is a de Polignac number, because none of the positive numbers 2^k-718268953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 718268897 and 718268906.

It is not an unprimeable number, because it can be changed into a prime (718268983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6025 + ... + 38377.

Almost surely, 2^718268953 is an apocalyptic number.

It is an amenable number.

718268953 is a deficient number, since it is larger than the sum of its proper divisors (4875301).

718268953 is an equidigital number, since it uses as much as digits as its factorization.

718268953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32651 (or 32502 counting only the distinct ones).

The product of its digits is 725760, while the sum is 49.

The square root of 718268953 is about 26800.5401624669. The cubic root of 718268953 is about 895.5620838003.

The spelling of 718268953 in words is "seven hundred eighteen million, two hundred sixty-eight thousand, nine hundred fifty-three".