97223742722 has 18 divisors (see below), whose sum is σ = 147419430363. Its totient is φ = 48089551872.

The previous prime is 97223742703. The next prime is 97223742731. The reversal of 97223742722 is 22724732279.

It can be written as a sum of positive squares in 5 ways, for example, as 83290537201 + 13933205521 = 288601^2 + 118039^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=220481.

It is a super-2 number, since 2×97223742722² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 42772178 + ... + 42774450.

Almost surely, 2^97223742722 is an apocalyptic number.

97223742722 is a deficient number, since it is larger than the sum of its proper divisors (50195687641).

97223742722 is an frugal number, since it uses more digits than its factorization.

97223742722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4742 (or 2372 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 47.

The spelling of 97223742722 in words is "ninety-seven billion, two hundred twenty-three million, seven hundred forty-two thousand, seven hundred twenty-two".