28446118311828 has 72 divisors (see below), whose sum is σ = 77212347744000. Its totient is φ = 8127309197952.

The previous prime is 28446118311769. The next prime is 28446118311931. The reversal of 28446118311828 is 82811381164482.

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, 32834973 + ... + 33690171.

Almost surely, 2^{28446118311828} is an apocalyptic number.

28446118311828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28446118311828 is an abundant number, since it is smaller than the sum of its proper divisors (48766229432172).

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

28446118311828 is a wasteful number, since it uses less digits than its factorization.

28446118311828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911789 (or 911780 counting only the distinct ones).

The product of its digits is 4718592, while the sum is 57.

The spelling of 28446118311828 in words is "twenty-eight trillion, four hundred forty-six billion, one hundred eighteen million, three hundred eleven thousand, eight hundred twenty-eight".