128454976400 has 60 divisors (see below), whose sum is σ = 314436021012. Its totient is φ = 50412510720.

The previous prime is 128454976367. The next prime is 128454976421. The reversal of 128454976400 is 4679454821.

It can be written as a sum of positive squares in 6 ways, for example, as 12561029776 + 115893946624 = 112076^2 + 340432^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3008399 + ... + 3050798.

Almost surely, 2^128454976400 is an apocalyptic number.

128454976400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128454976400 is an abundant number, since it is smaller than the sum of its proper divisors (185981044612).

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

128454976400 is a wasteful number, since it uses less digits than its factorization.

128454976400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6059268 (or 6059257 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 128454976400 in words is "one hundred twenty-eight billion, four hundred fifty-four million, nine hundred seventy-six thousand, four hundred".