128633960910 has 256 divisors, whose sum is σ = 393578938368. Its totient is φ = 26174016000.

The previous prime is 128633960899. The next prime is 128633960929. The reversal of 128633960910 is 19069336821.

It is a self number, because there is not a number n which added to its sum of digits gives 128633960910.

It is a congruent number.

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, 25978935 + ... + 25983885.

It is an arithmetic number, because the mean of its divisors is an integer number (1537417728).

Almost surely, 2^128633960910 is an apocalyptic number.

128633960910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 128633960910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196789469184).

128633960910 is an abundant number, since it is smaller than the sum of its proper divisors (264944977458).

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

128633960910 is a wasteful number, since it uses less digits than its factorization.

128633960910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5319.

The product of its (nonzero) digits is 419904, while the sum is 48.

The spelling of 128633960910 in words is "one hundred twenty-eight billion, six hundred thirty-three million, nine hundred sixty thousand, nine hundred ten".