722393607541 has 2 divisors, whose sum is σ = 722393607542. Its totient is φ = 722393607540.

The previous prime is 722393607497. The next prime is 722393607623. The reversal of 722393607541 is 145706393227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 669606707025 + 52786900516 = 818295^2 + 229754^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722393607541 is a prime.

It is a super-2 number, since 2×722393607541² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722393607841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361196803770 + 361196803771.

It is an arithmetic number, because the mean of its divisors is an integer number (361196803771).

Almost surely, 2^722393607541 is an apocalyptic number.

It is an amenable number.

722393607541 is a deficient number, since it is larger than the sum of its proper divisors (1).

722393607541 is an equidigital number, since it uses as much as digits as its factorization.

722393607541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 722393607541 in words is "seven hundred twenty-two billion, three hundred ninety-three million, six hundred seven thousand, five hundred forty-one".