9521194960457 has 2 divisors, whose sum is σ = 9521194960458. Its totient is φ = 9521194960456.

The previous prime is 9521194960451. The next prime is 9521194960553. The reversal of 9521194960457 is 7540694911259.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8256404572816 + 1264790387641 = 2873396^2 + 1124629^2 .

It is an emirp because it is prime and its reverse (7540694911259) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9521194960457 - 2⁸ = 9521194960201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9521194960457.

It is not a weakly prime, because it can be changed into another prime (9521194960451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4760597480228 + 4760597480229.

It is an arithmetic number, because the mean of its divisors is an integer number (4760597480229).

Almost surely, 2^{9521194960457} is an apocalyptic number.

It is an amenable number.

9521194960457 is a deficient number, since it is larger than the sum of its proper divisors (1).

9521194960457 is an equidigital number, since it uses as much as digits as its factorization.

9521194960457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24494400, while the sum is 62.

The spelling of 9521194960457 in words is "nine trillion, five hundred twenty-one billion, one hundred ninety-four million, nine hundred sixty thousand, four hundred fifty-seven".