129991478593 has 8 divisors (see below), whose sum is σ = 134190767360. Its totient is φ = 125792565840.

The previous prime is 129991478567. The next prime is 129991478609. The reversal of 129991478593 is 395874199921.

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

It is a cyclic number.

It is not a de Polignac number, because 129991478593 - 2⁹ = 129991478081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129991478543) 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, 720823 + ... + 882931.

It is an arithmetic number, because the mean of its divisors is an integer number (16773845920).

Almost surely, 2^129991478593 is an apocalyptic number.

It is an amenable number.

129991478593 is a deficient number, since it is larger than the sum of its proper divisors (4199288767).

129991478593 is a wasteful number, since it uses less digits than its factorization.

129991478593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188007.

The product of its digits is 44089920, while the sum is 67.

The spelling of 129991478593 in words is "one hundred twenty-nine billion, nine hundred ninety-one million, four hundred seventy-eight thousand, five hundred ninety-three".