129096775080 has 512 divisors, whose sum is σ = 533849702400. Its totient is φ = 27020915712.

The previous prime is 129096775079. The next prime is 129096775091. The reversal of 129096775080 is 80577690921.

129096775080 is a `hidden beast` number, since 129 + 0 + 9 + 6 + 7 + 7 + 508 + 0 = 666.

It is a super-2 number, since 2×129096775080² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12476389 + ... + 12486731.

It is an arithmetic number, because the mean of its divisors is an integer number (1042675200).

Almost surely, 2^129096775080 is an apocalyptic number.

129096775080 is a gapful number since it is divisible by the number (10) 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 129096775080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266924851200).

129096775080 is an abundant number, since it is smaller than the sum of its proper divisors (404752927320).

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

129096775080 is a wasteful number, since it uses less digits than its factorization.

129096775080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10510 (or 10500 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The spelling of 129096775080 in words is "one hundred twenty-nine billion, ninety-six million, seven hundred seventy-five thousand, eighty".