712218044321 has 40 divisors (see below), whose sum is σ = 890431356864. Its totient is φ = 568146791520.

The previous prime is 712218044297. The next prime is 712218044327. The reversal of 712218044321 is 123440812217.

It is not a de Polignac number, because 712218044321 - 2³⁴ = 695038175137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (712218044327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1868966 + ... + 2217536.

Almost surely, 2^712218044321 is an apocalyptic number.

It is an amenable number.

712218044321 is a deficient number, since it is larger than the sum of its proper divisors (178213312543).

712218044321 is an equidigital number, since it uses as much as digits as its factorization.

712218044321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348659 (or 348638 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

Adding to 712218044321 its reverse (123440812217), we get a palindrome (835658856538).

The spelling of 712218044321 in words is "seven hundred twelve billion, two hundred eighteen million, forty-four thousand, three hundred twenty-one".