129536471830 has 8 divisors (see below), whose sum is σ = 233165649312. Its totient is φ = 51814588728.

The previous prime is 129536471807. The next prime is 129536471849. The reversal of 129536471830 is 38174635921.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6476823582 + ... + 6476823601.

It is an arithmetic number, because the mean of its divisors is an integer number (29145706164).

It is a 1-persistent number, because it is pandigital, but 2⋅129536471830 = 259072943660 is not.

Almost surely, 2^129536471830 is an apocalyptic number.

129536471830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129536471830 is a deficient number, since it is larger than the sum of its proper divisors (103629177482).

129536471830 is a wasteful number, since it uses less digits than its factorization.

129536471830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12953647190.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 129536471830 in words is "one hundred twenty-nine billion, five hundred thirty-six million, four hundred seventy-one thousand, eight hundred thirty".