818225954759 has 4 divisors (see below), whose sum is σ = 818236131504. Its totient is φ = 818215778016.

The previous prime is 818225954719. The next prime is 818225954783. The reversal of 818225954759 is 957459522818.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-818225954759 is a prime.

It is a super-2 number, since 2×818225954759² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 818225954695 and 818225954704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818225954719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4966802 + ... + 5128895.

It is an arithmetic number, because the mean of its divisors is an integer number (204559032876).

Almost surely, 2^818225954759 is an apocalyptic number.

818225954759 is a deficient number, since it is larger than the sum of its proper divisors (10176745).

818225954759 is a wasteful number, since it uses less digits than its factorization.

818225954759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10176744.

The product of its digits is 72576000, while the sum is 65.

The spelling of 818225954759 in words is "eight hundred eighteen billion, two hundred twenty-five million, nine hundred fifty-four thousand, seven hundred fifty-nine".