129245240404880 has 40 divisors (see below), whose sum is σ = 300496685766912. Its totient is φ = 51697837783424.

The previous prime is 129245240404859. The next prime is 129245240404909. The reversal of 129245240404880 is 88404042542921.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 12490049 + ... + 20359071.

Almost surely, 2^{129245240404880} is an apocalyptic number.

129245240404880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129245240404880 is an abundant number, since it is smaller than the sum of its proper divisors (171251445362032).

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

129245240404880 is a wasteful number, since it uses less digits than its factorization.

129245240404880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8074343 (or 8074337 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 53.

The spelling of 129245240404880 in words is "one hundred twenty-nine trillion, two hundred forty-five billion, two hundred forty million, four hundred four thousand, eight hundred eighty".