128299662300 has 36 divisors (see below), whose sum is σ = 371213690456. Its totient is φ = 34213243200.

The previous prime is 128299662241. The next prime is 128299662313. The reversal of 128299662300 is 3266992821.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 128299662300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213832471 + ... + 213833070.

Almost surely, 2^128299662300 is an apocalyptic number.

128299662300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128299662300 is an abundant number, since it is smaller than the sum of its proper divisors (242914028156).

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

128299662300 is a wasteful number, since it uses less digits than its factorization.

128299662300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427665558 (or 427665551 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 128299662300 in words is "one hundred twenty-eight billion, two hundred ninety-nine million, six hundred sixty-two thousand, three hundred".