63111000128 has 56 divisors (see below), whose sum is σ = 136947676320. Its totient is φ = 28618219520.

The previous prime is 63111000097. The next prime is 63111000151. The reversal of 63111000128 is 82100011136.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188000 + ... + 401952.

It is an arithmetic number, because the mean of its divisors is an integer number (2445494220).

Almost surely, 2^63111000128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63111000128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68473838160).

63111000128 is an abundant number, since it is smaller than the sum of its proper divisors (73836676192).

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

63111000128 is a wasteful number, since it uses less digits than its factorization.

63111000128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214395 (or 214385 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 63111000128 in words is "sixty-three billion, one hundred eleven million, one hundred twenty-eight", and thus it is an aban number.