28839654549900 has 180 divisors, whose sum is σ = 93498146522088. Its totient is φ = 7689638396160.

The previous prime is 28839654549899. The next prime is 28839654549917. The reversal of 28839654549900 is 994545693882.

28839654549900 is a `hidden beast` number, since 2 + 8 + 8 + 3 + 96 + 5 + 45 + 499 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 67641187 + ... + 68066213.

Almost surely, 2^{28839654549900} is an apocalyptic number.

28839654549900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28839654549900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46749073261044).

28839654549900 is an abundant number, since it is smaller than the sum of its proper divisors (64658491972188).

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

28839654549900 is a wasteful number, since it uses less digits than its factorization.

28839654549900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433430 (or 433414 counting only the distinct ones).

The product of its (nonzero) digits is 671846400, while the sum is 72.

The spelling of 28839654549900 in words is "twenty-eight trillion, eight hundred thirty-nine billion, six hundred fifty-four million, five hundred forty-nine thousand, nine hundred".