128854609700 has 36 divisors (see below), whose sum is σ = 279635768832. Its totient is φ = 51537924000.

The previous prime is 128854609693. The next prime is 128854609771. The reversal of 128854609700 is 7906458821.

It is a Harshad number since it is a multiple of its sum of digits (50).

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, 1523525 + ... + 1605875.

Almost surely, 2^128854609700 is an apocalyptic number.

128854609700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128854609700 is an abundant number, since it is smaller than the sum of its proper divisors (150781159132).

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

128854609700 is a wasteful number, since it uses less digits than its factorization.

128854609700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98012 (or 98005 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 128854609700 in words is "one hundred twenty-eight billion, eight hundred fifty-four million, six hundred nine thousand, seven hundred".