129748863216 has 120 divisors (see below), whose sum is σ = 390220180560. Its totient is φ = 37041478656.

The previous prime is 129748863191. The next prime is 129748863269. The reversal of 129748863216 is 612368847921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3010330 + ... + 3053126.

It is an arithmetic number, because the mean of its divisors is an integer number (3251834838).

Almost surely, 2^129748863216 is an apocalyptic number.

129748863216 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 129748863216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195110090280).

129748863216 is an abundant number, since it is smaller than the sum of its proper divisors (260471317344).

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

129748863216 is a wasteful number, since it uses less digits than its factorization.

129748863216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44111 (or 44098 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 57.

The spelling of 129748863216 in words is "one hundred twenty-nine billion, seven hundred forty-eight million, eight hundred sixty-three thousand, two hundred sixteen".