12950129628 has 36 divisors (see below), whose sum is σ = 33183481968. Its totient is φ = 4257576000.

The previous prime is 12950129623. The next prime is 12950129651. The reversal of 12950129628 is 82692105921.

It is a happy number.

12950129628 is a `hidden beast` number, since 1 + 2 + 9 + 5 + 0 + 12 + 9 + 628 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12950129623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2461248 + ... + 2466503.

It is an arithmetic number, because the mean of its divisors is an integer number (921763388).

Almost surely, 2^12950129628 is an apocalyptic number.

12950129628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12950129628 is an abundant number, since it is smaller than the sum of its proper divisors (20233352340).

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

12950129628 is a wasteful number, since it uses less digits than its factorization.

12950129628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4927834 (or 4927829 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 12950129628 in words is "twelve billion, nine hundred fifty million, one hundred twenty-nine thousand, six hundred twenty-eight".