612204320450 has 162 divisors, whose sum is σ = 1268985426219. Its totient is φ = 219677187840.

The previous prime is 612204320449. The next prime is 612204320489. The reversal of 612204320450 is 54023402216.

It can be written as a sum of positive squares in 5 ways, for example, as 398631865129 + 213572455321 = 631373^2 + 462139^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=553265.

It is a Duffinian number.

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 80 ways as a sum of consecutive naturals, for example, 2163266009 + ... + 2163266291.

Almost surely, 2^612204320450 is an apocalyptic number.

612204320450 is an abundant number, since it is smaller than the sum of its proper divisors (656781105769).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612204320450 is a wasteful number, since it uses less digits than its factorization.

612204320450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 612204320450 its reverse (54023402216), we get a palindrome (666227722666).

The spelling of 612204320450 in words is "six hundred twelve billion, two hundred four million, three hundred twenty thousand, four hundred fifty".