612536020673 has 4 divisors (see below), whose sum is σ = 612540188208. Its totient is φ = 612531853140.

The previous prime is 612536020643. The next prime is 612536020717. The reversal of 612536020673 is 376020635216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 612536020673 - 2¹⁰ = 612536019649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 612536020673.

It is not an unprimeable number, because it can be changed into a prime (612536020643) 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, 1854923 + ... + 2160048.

It is an arithmetic number, because the mean of its divisors is an integer number (153135047052).

Almost surely, 2^612536020673 is an apocalyptic number.

It is an amenable number.

612536020673 is a deficient number, since it is larger than the sum of its proper divisors (4167535).

612536020673 is a wasteful number, since it uses less digits than its factorization.

612536020673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167534.

The product of its (nonzero) digits is 272160, while the sum is 41.

Adding to 612536020673 its reverse (376020635216), we get a palindrome (988556655889).

The spelling of 612536020673 in words is "six hundred twelve billion, five hundred thirty-six million, twenty thousand, six hundred seventy-three".