722928144647 has 2 divisors, whose sum is σ = 722928144648. Its totient is φ = 722928144646.

The previous prime is 722928144629. The next prime is 722928144671. The reversal of 722928144647 is 746441829227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 722928144647 - 2⁸ = 722928144391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 722928144592 and 722928144601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722928144247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361464072323 + 361464072324.

It is an arithmetic number, because the mean of its divisors is an integer number (361464072324).

Almost surely, 2^722928144647 is an apocalyptic number.

722928144647 is a deficient number, since it is larger than the sum of its proper divisors (1).

722928144647 is an equidigital number, since it uses as much as digits as its factorization.

722928144647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10838016, while the sum is 56.

The spelling of 722928144647 in words is "seven hundred twenty-two billion, nine hundred twenty-eight million, one hundred forty-four thousand, six hundred forty-seven".