97575107425921 has 2 divisors, whose sum is σ = 97575107425922. Its totient is φ = 97575107425920.

The previous prime is 97575107425907. The next prime is 97575107425933. The reversal of 97575107425921 is 12952470157579.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55711878193521 + 41863229232400 = 7464039^2 + 6470180^2 .

It is a cyclic number.

It is not a de Polignac number, because 97575107425921 - 2²¹ = 97575105328769 is a prime.

It is not a weakly prime, because it can be changed into another prime (97575107425981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48787553712960 + 48787553712961.

It is an arithmetic number, because the mean of its divisors is an integer number (48787553712961).

Almost surely, 2^{97575107425921} is an apocalyptic number.

It is an amenable number.

97575107425921 is a deficient number, since it is larger than the sum of its proper divisors (1).

97575107425921 is an equidigital number, since it uses as much as digits as its factorization.

97575107425921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55566000, while the sum is 64.

The spelling of 97575107425921 in words is "ninety-seven trillion, five hundred seventy-five billion, one hundred seven million, four hundred twenty-five thousand, nine hundred twenty-one".