129475849293 has 96 divisors (see below), whose sum is σ = 228248616960. Its totient is φ = 69040304640.

The previous prime is 129475849231. The next prime is 129475849297. The reversal of 129475849293 is 392948574921.

129475849293 is a `hidden beast` number, since 1 + 2 + 9 + 4 + 7 + 58 + 492 + 93 = 666.

It is not a de Polignac number, because 129475849293 - 2⁶ = 129475849229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 129475849293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129475849297) 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 95 ways as a sum of consecutive naturals, for example, 82625796 + ... + 82627362.

It is an arithmetic number, because the mean of its divisors is an integer number (2377589760).

Almost surely, 2^129475849293 is an apocalyptic number.

It is an amenable number.

129475849293 is a deficient number, since it is larger than the sum of its proper divisors (98772767667).

129475849293 is a wasteful number, since it uses less digits than its factorization.

129475849293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207 (or 2204 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The spelling of 129475849293 in words is "one hundred twenty-nine billion, four hundred seventy-five million, eight hundred forty-nine thousand, two hundred ninety-three".