117846394397 has 2 divisors, whose sum is σ = 117846394398. Its totient is φ = 117846394396.

The previous prime is 117846394373. The next prime is 117846394487. The reversal of 117846394397 is 793493648711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80877103321 + 36969291076 = 284389^2 + 192274^2 .

It is a cyclic number.

It is not a de Polignac number, because 117846394397 - 2¹² = 117846390301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117846390397) by changing a digit.

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 as a sum of consecutive naturals, namely, 58923197198 + 58923197199.

It is an arithmetic number, because the mean of its divisors is an integer number (58923197199).

Almost surely, 2^117846394397 is an apocalyptic number.

It is an amenable number.

117846394397 is a deficient number, since it is larger than the sum of its proper divisors (1).

117846394397 is an equidigital number, since it uses as much as digits as its factorization.

117846394397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27433728, while the sum is 62.

The spelling of 117846394397 in words is "one hundred seventeen billion, eight hundred forty-six million, three hundred ninety-four thousand, three hundred ninety-seven".