6417118723 has 4 divisors (see below), whose sum is σ = 6418441008. Its totient is φ = 6415796440.

The previous prime is 6417118681. The next prime is 6417118777. The reversal of 6417118723 is 3278117146.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3278117146 = 2 ⋅1639058573.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6417118723 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6417110723) 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, 653836 + ... + 663577.

It is an arithmetic number, because the mean of its divisors is an integer number (1604610252).

Almost surely, 2^6417118723 is an apocalyptic number.

6417118723 is a deficient number, since it is larger than the sum of its proper divisors (1322285).

6417118723 is a wasteful number, since it uses less digits than its factorization.

6417118723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322284.

The product of its digits is 56448, while the sum is 40.

The square root of 6417118723 is about 80106.9205686999. The cubic root of 6417118723 is about 1858.2894362322.

The spelling of 6417118723 in words is "six billion, four hundred seventeen million, one hundred eighteen thousand, seven hundred twenty-three".