128847630600 has 144 divisors (see below), whose sum is σ = 465999015300. Its totient is φ = 31716334080.

The previous prime is 128847630599. The next prime is 128847630641. The reversal of 128847630600 is 6036748821.

128847630600 is a `hidden beast` number, since 1 + 2 + 8 + 8 + 4 + 7 + 6 + 30 + 600 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 46933756164 + 81913874436 = 216642^2 + 286206^2 .

It is a super-2 number, since 2×128847630600² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2729755 + ... + 2776554.

Almost surely, 2^128847630600 is an apocalyptic number.

128847630600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128847630600 is an abundant number, since it is smaller than the sum of its proper divisors (337151384700).

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

128847630600 is a wasteful number, since it uses less digits than its factorization.

128847630600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506344 (or 5506332 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 128847630600 in words is "one hundred twenty-eight billion, eight hundred forty-seven million, six hundred thirty thousand, six hundred".