612444506546 has 8 divisors (see below), whose sum is σ = 925372357020. Its totient is φ = 303987054208.

The previous prime is 612444506539. The next prime is 612444506563. The reversal of 612444506546 is 645605444216.

It can be written as a sum of positive squares in 2 ways, for example, as 509588961025 + 102855545521 = 713855^2 + 320711^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 612444506546.

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 3 ways as a sum of consecutive naturals, for example, 1117599191 + ... + 1117599738.

Almost surely, 2^612444506546 is an apocalyptic number.

612444506546 is a deficient number, since it is larger than the sum of its proper divisors (312927850474).

612444506546 is a wasteful number, since it uses less digits than its factorization.

612444506546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235199068.

The product of its (nonzero) digits is 2764800, while the sum is 47.

The spelling of 612444506546 in words is "six hundred twelve billion, four hundred forty-four million, five hundred six thousand, five hundred forty-six".