722849695961 has 4 divisors (see below), whose sum is σ = 728125971252. Its totient is φ = 717573420672.

The previous prime is 722849695951. The next prime is 722849695963. The reversal of 722849695961 is 169596948227.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 569307975625 + 153541720336 = 754525^2 + 391844^2 .

It is a cyclic number.

It is not a de Polignac number, because 722849695961 - 2¹⁰ = 722849694937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 722849695891 and 722849695900.

It is not an unprimeable number, because it can be changed into a prime (722849695963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2638137440 + ... + 2638137713.

It is an arithmetic number, because the mean of its divisors is an integer number (182031492813).

Almost surely, 2^722849695961 is an apocalyptic number.

It is an amenable number.

722849695961 is a deficient number, since it is larger than the sum of its proper divisors (5276275291).

722849695961 is a wasteful number, since it uses less digits than its factorization.

722849695961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5276275290.

The product of its digits is 117573120, while the sum is 68.

The spelling of 722849695961 in words is "seven hundred twenty-two billion, eight hundred forty-nine million, six hundred ninety-five thousand, nine hundred sixty-one".