129935846493 has 10 divisors (see below), whose sum is σ = 194101696734. Its totient is φ = 86623897608.

The previous prime is 129935846471. The next prime is 129935846527. The reversal of 129935846493 is 394648539921.

129935846493 is a `hidden beast` number, since 1 + 2 + 9 + 9 + 3 + 584 + 6 + 49 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 124385298489 + 5550548004 = 352683^2 + 74502^2 .

It is not a de Polignac number, because 129935846493 - 2⁹ = 129935845981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129935846493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129935846413) 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 in 9 ways as a sum of consecutive naturals, for example, 802073046 + ... + 802073207.

Almost surely, 2^129935846493 is an apocalyptic number.

It is an amenable number.

129935846493 is a deficient number, since it is larger than the sum of its proper divisors (64165850241).

129935846493 is an equidigital number, since it uses as much as digits as its factorization.

129935846493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604146265 (or 1604146256 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 63.

The spelling of 129935846493 in words is "one hundred twenty-nine billion, nine hundred thirty-five million, eight hundred forty-six thousand, four hundred ninety-three".