9645988004357 has 2 divisors, whose sum is σ = 9645988004358. Its totient is φ = 9645988004356.

The previous prime is 9645988004339. The next prime is 9645988004407. The reversal of 9645988004357 is 7534008895469.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9438007313956 + 207980690401 = 3072134^2 + 456049^2 .

It is a cyclic number.

It is not a de Polignac number, because 9645988004357 - 2⁶ = 9645988004293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9645988004057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4822994002178 + 4822994002179.

It is an arithmetic number, because the mean of its divisors is an integer number (4822994002179).

Almost surely, 2^{9645988004357} is an apocalyptic number.

It is an amenable number.

9645988004357 is a deficient number, since it is larger than the sum of its proper divisors (1).

9645988004357 is an equidigital number, since it uses as much as digits as its factorization.

9645988004357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 261273600, while the sum is 68.

The spelling of 9645988004357 in words is "nine trillion, six hundred forty-five billion, nine hundred eighty-eight million, four thousand, three hundred fifty-seven".