97574487953 has 2 divisors, whose sum is σ = 97574487954. Its totient is φ = 97574487952.

The previous prime is 97574487917. The next prime is 97574488009. The reversal of 97574487953 is 35978447579.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81700503889 + 15873984064 = 285833^2 + 125992^2 .

It is a cyclic number.

It is not a de Polignac number, because 97574487953 - 2⁸ = 97574487697 is a prime.

It is not a weakly prime, because it can be changed into another prime (97574489953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48787243976 + 48787243977.

It is an arithmetic number, because the mean of its divisors is an integer number (48787243977).

Almost surely, 2^97574487953 is an apocalyptic number.

It is an amenable number.

97574487953 is a deficient number, since it is larger than the sum of its proper divisors (1).

97574487953 is an equidigital number, since it uses as much as digits as its factorization.

97574487953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 266716800, while the sum is 68.

The spelling of 97574487953 in words is "ninety-seven billion, five hundred seventy-four million, four hundred eighty-seven thousand, nine hundred fifty-three".