129496925376 has 672 divisors, whose sum is σ = 470092162176. Its totient is φ = 33177600000.

The previous prime is 129496925333. The next prime is 129496925401. The reversal of 129496925376 is 673529694921.

129496925376 is a `hidden beast` number, since 1 + 2 + 9 + 4 + 9 + 6 + 92 + 537 + 6 = 666.

129496925376 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 322934776 + ... + 322935176.

It is an arithmetic number, because the mean of its divisors is an integer number (699541908).

Almost surely, 2^129496925376 is an apocalyptic number.

129496925376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129496925376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235046081088).

129496925376 is an abundant number, since it is smaller than the sum of its proper divisors (340595236800).

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

129496925376 is a wasteful number, since it uses less digits than its factorization.

129496925376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 588 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 63.

The spelling of 129496925376 in words is "one hundred twenty-nine billion, four hundred ninety-six million, nine hundred twenty-five thousand, three hundred seventy-six".