28789820602100 has 72 divisors (see below), whose sum is σ = 65763976669440. Its totient is φ = 10909500698880.

The previous prime is 28789820602087. The next prime is 28789820602117. The reversal of 28789820602100 is 120602898782.

It is a super-2 number, since 2×28789820602100² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68919464 + ... + 69335936.

Almost surely, 2^{28789820602100} is an apocalyptic number.

28789820602100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28789820602100 is an abundant number, since it is smaller than the sum of its proper divisors (36974156067340).

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

28789820602100 is a wasteful number, since it uses less digits than its factorization.

28789820602100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452889 (or 452882 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 53.

The spelling of 28789820602100 in words is "twenty-eight trillion, seven hundred eighty-nine billion, eight hundred twenty million, six hundred two thousand, one hundred".