129169038783 has 8 divisors (see below), whose sum is σ = 173117745328. Its totient is φ = 85666512384.

The previous prime is 129169038727. The next prime is 129169038793. The reversal of 129169038783 is 387830961921.

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

It is not a de Polignac number, because 129169038783 - 2¹⁷ = 129168907711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129169038793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111544360 + ... + 111545517.

It is an arithmetic number, because the mean of its divisors is an integer number (21639718166).

Almost surely, 2^129169038783 is an apocalyptic number.

129169038783 is a deficient number, since it is larger than the sum of its proper divisors (43948706545).

129169038783 is a wasteful number, since it uses less digits than its factorization.

129169038783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223090073.

The product of its (nonzero) digits is 3919104, while the sum is 57.

The spelling of 129169038783 in words is "one hundred twenty-nine billion, one hundred sixty-nine million, thirty-eight thousand, seven hundred eighty-three".