612227681348213 has 16 divisors (see below), whose sum is σ = 703716133824000. Its totient is φ = 521747054986992.

The previous prime is 612227681348201. The next prime is 612227681348243. The reversal of 612227681348213 is 312843186722216.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 612227681348213 - 2¹⁰ = 612227681347189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612227681348243) 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 15 ways as a sum of consecutive naturals, for example, 33694103 + ... + 48577236.

It is an arithmetic number, because the mean of its divisors is an integer number (43982258364000).

Almost surely, 2^{612227681348213} is an apocalyptic number.

It is an amenable number.

612227681348213 is a deficient number, since it is larger than the sum of its proper divisors (91488452475787).

612227681348213 is a wasteful number, since it uses less digits than its factorization.

612227681348213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82277464.

The product of its digits is 9289728, while the sum is 56.

The spelling of 612227681348213 in words is "six hundred twelve trillion, two hundred twenty-seven billion, six hundred eighty-one million, three hundred forty-eight thousand, two hundred thirteen".