129895874730 has 48 divisors (see below), whose sum is σ = 337785223464. Its totient is φ = 34633161600.

The previous prime is 129895874723. The next prime is 129895874743. The reversal of 129895874730 is 37478598921.

129895874730 is a `hidden beast` number, since 1 + 2 + 9 + 8 + 9 + 587 + 47 + 3 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 61886015361 + 68009859369 = 248769^2 + 260787^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441280 + ... + 674180.

Almost surely, 2^129895874730 is an apocalyptic number.

129895874730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129895874730 is an abundant number, since it is smaller than the sum of its proper divisors (207889348734).

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

129895874730 is a wasteful number, since it uses less digits than its factorization.

129895874730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239111 (or 239108 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 63.

The spelling of 129895874730 in words is "one hundred twenty-nine billion, eight hundred ninety-five million, eight hundred seventy-four thousand, seven hundred thirty".