612213362761 has 16 divisors (see below), whose sum is σ = 821992768128. Its totient is φ = 440353267200.

The previous prime is 612213362711. The next prime is 612213362771. The reversal of 612213362761 is 167263312216.

It is a happy number.

It is not a de Polignac number, because 612213362761 - 2¹³ = 612213354569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612213362711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305799880 + ... + 305801881.

It is an arithmetic number, because the mean of its divisors is an integer number (51374548008).

Almost surely, 2^612213362761 is an apocalyptic number.

It is an amenable number.

612213362761 is a deficient number, since it is larger than the sum of its proper divisors (209779405367).

612213362761 is a wasteful number, since it uses less digits than its factorization.

612213362761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611601792.

The product of its digits is 108864, while the sum is 40.

Adding to 612213362761 its reverse (167263312216), we get a palindrome (779476674977).

The spelling of 612213362761 in words is "six hundred twelve billion, two hundred thirteen million, three hundred sixty-two thousand, seven hundred sixty-one".