129504674340 has 360 divisors, whose sum is σ = 445535768832. Its totient is φ = 31451120640.

The previous prime is 129504674339. The next prime is 129504674413. The reversal of 129504674340 is 43476405921.

129504674340 is a `hidden beast` number, since 1 + 2 + 9 + 504 + 67 + 43 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 14509119 + ... + 14518041.

Almost surely, 2^129504674340 is an apocalyptic number.

129504674340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129504674340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222767884416).

129504674340 is an abundant number, since it is smaller than the sum of its proper divisors (316031094492).

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

129504674340 is a wasteful number, since it uses less digits than its factorization.

129504674340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9009 (or 8981 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 129504674340 in words is "one hundred twenty-nine billion, five hundred four million, six hundred seventy-four thousand, three hundred forty".