129264084400 has 60 divisors (see below), whose sum is σ = 338789425464. Its totient is φ = 47005120000.

The previous prime is 129264084353. The next prime is 129264084403. The reversal of 129264084400 is 4480462921.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (129264084403) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 14684701 + ... + 14693500.

Almost surely, 2^129264084400 is an apocalyptic number.

129264084400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129264084400 is an abundant number, since it is smaller than the sum of its proper divisors (209525341064).

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

129264084400 is a wasteful number, since it uses less digits than its factorization.

129264084400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29378230 (or 29378219 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 129264084400 in words is "one hundred twenty-nine billion, two hundred sixty-four million, eighty-four thousand, four hundred".