129846356964 has 63 divisors (see below), whose sum is σ = 340741898553. Its totient is φ = 43275632832.

The previous prime is 129846356933. The next prime is 129846356993. The reversal of 129846356964 is 469653648921.

The square root of 129846356964 is 360342.

It is a perfect power (a square), and thus also a powerful number.

129846356964 is a `hidden beast` number, since 1 + 2 + 9 + 8 + 4 + 6 + 3 + 569 + 64 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4666256100 + 125180100864 = 68310^2 + 353808^2 .

It is a super-2 number, since 2×129846356964² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 19455132 + ... + 19461804.

Almost surely, 2^129846356964 is an apocalyptic number.

129846356964 is the 360342-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129846356964

129846356964 is an abundant number, since it is smaller than the sum of its proper divisors (210895541589).

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

129846356964 is an frugal number, since it uses more digits than its factorization.

129846356964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13368 (or 6678 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 63.

The spelling of 129846356964 in words is "one hundred twenty-nine billion, eight hundred forty-six million, three hundred fifty-six thousand, nine hundred sixty-four".