623383658217 has 6 divisors (see below), whose sum is σ = 900443061882. Its totient is φ = 415589105472.

The previous prime is 623383658189. The next prime is 623383658243. The reversal of 623383658217 is 712856383326.

It is a happy number.

623383658217 is a `hidden beast` number, since 6 + 23 + 3 + 8 + 36 + 582 + 1 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 618517758681 + 4865899536 = 786459^2 + 69756^2 .

It is not a de Polignac number, because 623383658217 - 2⁸ = 623383657961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (623383658267) 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, 34632425448 + ... + 34632425465.

It is an arithmetic number, because the mean of its divisors is an integer number (150073843647).

Almost surely, 2^623383658217 is an apocalyptic number.

It is an amenable number.

623383658217 is a deficient number, since it is larger than the sum of its proper divisors (277059403665).

623383658217 is a wasteful number, since it uses less digits than its factorization.

623383658217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69264850919 (or 69264850916 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 623383658217 in words is "six hundred twenty-three billion, three hundred eighty-three million, six hundred fifty-eight thousand, two hundred seventeen".