129973324976 has 40 divisors (see below), whose sum is σ = 275760993024. Its totient is φ = 58854128960.

The previous prime is 129973324973. The next prime is 129973325017. The reversal of 129973324976 is 679423379921.

It is not an unprimeable number, because it can be changed into a prime (129973324973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1357676 + ... + 1450251.

Almost surely, 2^129973324976 is an apocalyptic number.

129973324976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

129973324976 is an abundant number, since it is smaller than the sum of its proper divisors (145787668048).

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

129973324976 is a wasteful number, since it uses less digits than its factorization.

129973324976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808209 (or 2808203 counting only the distinct ones).

The product of its digits is 30862944, while the sum is 62.

Subtracting 129973324976 from its reverse (679423379921), we obtain a palindrome (549450054945).

The spelling of 129973324976 in words is "one hundred twenty-nine billion, nine hundred seventy-three million, three hundred twenty-four thousand, nine hundred seventy-six".