129002069478 has 8 divisors (see below), whose sum is σ = 258004138968. Its totient is φ = 43000689824.

The previous prime is 129002069453. The next prime is 129002069479. The reversal of 129002069478 is 874960200921.

It is a sphenic number, since it is the product of 3 distinct primes.

129002069478 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129002069479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10750172451 + ... + 10750172462.

It is an arithmetic number, because the mean of its divisors is an integer number (32250517371).

Almost surely, 2^129002069478 is an apocalyptic number.

129002069478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129002069478 is a wasteful number, since it uses less digits than its factorization.

129002069478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21500344918.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 129002069478 in words is "one hundred twenty-nine billion, two million, sixty-nine thousand, four hundred seventy-eight".