129468546397 has 2 divisors, whose sum is σ = 129468546398. Its totient is φ = 129468546396.

The previous prime is 129468546377. The next prime is 129468546401. The reversal of 129468546397 is 793645864921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113771964601 + 15696581796 = 337301^2 + 125286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129468546397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129468546367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64734273198 + 64734273199.

It is an arithmetic number, because the mean of its divisors is an integer number (64734273199).

Almost surely, 2^129468546397 is an apocalyptic number.

It is an amenable number.

129468546397 is a deficient number, since it is larger than the sum of its proper divisors (1).

129468546397 is an equidigital number, since it uses as much as digits as its factorization.

129468546397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78382080, while the sum is 64.

The spelling of 129468546397 in words is "one hundred twenty-nine billion, four hundred sixty-eight million, five hundred forty-six thousand, three hundred ninety-seven".