612315065525623 has 4 divisors (see below), whose sum is σ = 612461657597200. Its totient is φ = 612168473454048.

The previous prime is 612315065525593. The next prime is 612315065525651. The reversal of 612315065525623 is 326525560513216.

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-612315065525623 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 (612315065025623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73296029523 + ... + 73296037876.

It is an arithmetic number, because the mean of its divisors is an integer number (153115414399300).

Almost surely, 2^{612315065525623} is an apocalyptic number.

612315065525623 is a deficient number, since it is larger than the sum of its proper divisors (146592071577).

612315065525623 is a wasteful number, since it uses less digits than its factorization.

612315065525623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146592071576.

The product of its (nonzero) digits is 9720000, while the sum is 52.

The spelling of 612315065525623 in words is "six hundred twelve trillion, three hundred fifteen billion, sixty-five million, five hundred twenty-five thousand, six hundred twenty-three".