512321445603623 has 8 divisors (see below), whose sum is σ = 539294625342000. Its totient is φ = 485349155178048.

The previous prime is 512321445603581. The next prime is 512321445603641. The reversal of 512321445603623 is 326306544123215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 512321445603623 - 2⁶ = 512321445603559 is a prime.

It is a super-2 number, since 2×512321445603623² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512321415603623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221145536 + ... + 223450197.

It is an arithmetic number, because the mean of its divisors is an integer number (67411828167750).

Almost surely, 2^{512321445603623} is an apocalyptic number.

512321445603623 is a deficient number, since it is larger than the sum of its proper divisors (26973179738377).

512321445603623 is a wasteful number, since it uses less digits than its factorization.

512321445603623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444656401.

The product of its (nonzero) digits is 3110400, while the sum is 47.

Adding to 512321445603623 its reverse (326306544123215), we get a palindrome (838627989726838).

The spelling of 512321445603623 in words is "five hundred twelve trillion, three hundred twenty-one billion, four hundred forty-five million, six hundred three thousand, six hundred twenty-three".