512381217623 has 4 divisors (see below), whose sum is σ = 558961328328. Its totient is φ = 465801106920.

The previous prime is 512381217617. The next prime is 512381217631. The reversal of 512381217623 is 326712183215.

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

It is a cyclic number.

It is not a de Polignac number, because 512381217623 - 2⁶ = 512381217559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512381217643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23290055336 + ... + 23290055357.

It is an arithmetic number, because the mean of its divisors is an integer number (139740332082).

Almost surely, 2^512381217623 is an apocalyptic number.

512381217623 is a deficient number, since it is larger than the sum of its proper divisors (46580110705).

512381217623 is a wasteful number, since it uses less digits than its factorization.

512381217623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46580110704.

The product of its digits is 120960, while the sum is 41.

The spelling of 512381217623 in words is "five hundred twelve billion, three hundred eighty-one million, two hundred seventeen thousand, six hundred twenty-three".