129050157312 has 144 divisors (see below), whose sum is σ = 382340501760. Its totient is φ = 42935961600.

The previous prime is 129050157281. The next prime is 129050157323. The reversal of 129050157312 is 213751050921.

129050157312 is a `hidden beast` number, since 1 + 2 + 90 + 501 + 57 + 3 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3722137 + ... + 3756647.

Almost surely, 2^129050157312 is an apocalyptic number.

129050157312 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 129050157312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191170250880).

129050157312 is an abundant number, since it is smaller than the sum of its proper divisors (253290344448).

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

129050157312 is an equidigital number, since it uses as much as digits as its factorization.

129050157312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35077 (or 35057 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 36.

The spelling of 129050157312 in words is "one hundred twenty-nine billion, fifty million, one hundred fifty-seven thousand, three hundred twelve".