129214377493 has 2 divisors, whose sum is σ = 129214377494. Its totient is φ = 129214377492.

The previous prime is 129214377379. The next prime is 129214377511. The reversal of 129214377493 is 394773412921.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92770803889 + 36443573604 = 304583^2 + 190902^2 .

It is an emirp because it is prime and its reverse (394773412921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129214377493 - 2⁹ = 129214376981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129214377493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129214377893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64607188746 + 64607188747.

It is an arithmetic number, because the mean of its divisors is an integer number (64607188747).

Almost surely, 2^129214377493 is an apocalyptic number.

It is an amenable number.

129214377493 is a deficient number, since it is larger than the sum of its proper divisors (1).

129214377493 is an equidigital number, since it uses as much as digits as its factorization.

129214377493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 52.

The spelling of 129214377493 in words is "one hundred twenty-nine billion, two hundred fourteen million, three hundred seventy-seven thousand, four hundred ninety-three".