128979795583800 has 216 divisors, whose sum is σ = 503876681357400. Its totient is φ = 29481096113280.

The previous prime is 128979795583673. The next prime is 128979795583801. The reversal of 128979795583800 is 8385597979821.

128979795583800 is a `hidden beast` number, since 1 + 2 + 89 + 79 + 7 + 95 + 5 + 8 + 380 + 0 = 666.

128979795583800 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 128979795583800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128979795583801) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 731089780 + ... + 731266179.

Almost surely, 2^{128979795583800} is an apocalyptic number.

128979795583800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128979795583800 is an abundant number, since it is smaller than the sum of its proper divisors (374896885773600).

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

128979795583800 is a wasteful number, since it uses less digits than its factorization.

128979795583800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462355995 (or 1462355976 counting only the distinct ones).

The product of its (nonzero) digits is 2743372800, while the sum is 81.

The spelling of 128979795583800 in words is "one hundred twenty-eight trillion, nine hundred seventy-nine billion, seven hundred ninety-five million, five hundred eighty-three thousand, eight hundred".