128806950360 has 128 divisors (see below), whose sum is σ = 421818969600. Its totient is φ = 31206005760.

The previous prime is 128806950341. The next prime is 128806950367. The reversal of 128806950360 is 63059608821.

It is a happy number.

It is a super-2 number, since 2×128806950360² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128806950367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2093557 + ... + 2154203.

It is an arithmetic number, because the mean of its divisors is an integer number (3295460700).

Almost surely, 2^128806950360 is an apocalyptic number.

128806950360 is a gapful number since it is divisible by the number (10) 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 128806950360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210909484800).

128806950360 is an abundant number, since it is smaller than the sum of its proper divisors (293012019240).

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

128806950360 is a wasteful number, since it uses less digits than its factorization.

128806950360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62281 (or 62277 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 128806950360 in words is "one hundred twenty-eight billion, eight hundred six million, nine hundred fifty thousand, three hundred sixty".