129131602470 has 288 divisors, whose sum is σ = 391960924992. Its totient is φ = 29295862272.

The previous prime is 129131602427. The next prime is 129131602487. The reversal of 129131602470 is 74206131921.

129131602470 is a `hidden beast` number, since 1 + 2 + 9 + 1 + 3 + 1 + 602 + 47 + 0 = 666.

It is a super-2 number, since 2×129131602470² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 15623559 + ... + 15631821.

It is an arithmetic number, because the mean of its divisors is an integer number (1360975434).

Almost surely, 2^129131602470 is an apocalyptic number.

129131602470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 129131602470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195980462496).

129131602470 is an abundant number, since it is smaller than the sum of its proper divisors (262829322522).

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

129131602470 is a wasteful number, since it uses less digits than its factorization.

129131602470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8364 (or 8342 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 129131602470 in words is "one hundred twenty-nine billion, one hundred thirty-one million, six hundred two thousand, four hundred seventy".