612444506545 has 8 divisors (see below), whose sum is σ = 741801945024. Its totient is φ = 485376580464.

The previous prime is 612444506539. The next prime is 612444506563. The reversal of 612444506545 is 545605444216.

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

It is a cyclic number.

It is not a de Polignac number, because 612444506545 - 2¹³ = 612444498353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 612444506495 and 612444506504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572377509 + ... + 572378578.

It is an arithmetic number, because the mean of its divisors is an integer number (92725243128).

Almost surely, 2^612444506545 is an apocalyptic number.

It is an amenable number.

612444506545 is a deficient number, since it is larger than the sum of its proper divisors (129357438479).

612444506545 is a wasteful number, since it uses less digits than its factorization.

612444506545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144756199.

The product of its (nonzero) digits is 2304000, while the sum is 46.

The spelling of 612444506545 in words is "six hundred twelve billion, four hundred forty-four million, five hundred six thousand, five hundred forty-five".