129020028263 has 8 divisors (see below), whose sum is σ = 147493130400. Its totient is φ = 110557343520.

The previous prime is 129020028251. The next prime is 129020028283. The reversal of 129020028263 is 362820020921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129020028263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129020028283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2577788 + ... + 2627361.

It is an arithmetic number, because the mean of its divisors is an integer number (18436641300).

Almost surely, 2^129020028263 is an apocalyptic number.

129020028263 is a deficient number, since it is larger than the sum of its proper divisors (18473102137).

129020028263 is an equidigital number, since it uses as much as digits as its factorization.

129020028263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208697.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 129020028263 in words is "one hundred twenty-nine billion, twenty million, twenty-eight thousand, two hundred sixty-three".