129030979392 has 168 divisors, whose sum is σ = 423660758976. Its totient is φ = 36780355584.

The previous prime is 129030979373. The next prime is 129030979411. The reversal of 129030979392 is 293979030921.

It is an interprime number because it is at equal distance from previous prime (129030979373) and next prime (129030979411).

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1708903 + ... + 1782809.

It is an arithmetic number, because the mean of its divisors is an integer number (2521790232).

Almost surely, 2^129030979392 is an apocalyptic number.

129030979392 is a gapful number since it is divisible by the number (12) 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 129030979392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211830379488).

129030979392 is an abundant number, since it is smaller than the sum of its proper divisors (294629779584).

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

129030979392 is a wasteful number, since it uses less digits than its factorization.

129030979392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74365 (or 74352 counting only the distinct ones).

The product of its (nonzero) digits is 1653372, while the sum is 54.

The spelling of 129030979392 in words is "one hundred twenty-nine billion, thirty million, nine hundred seventy-nine thousand, three hundred ninety-two".