28117741577860 has 48 divisors (see below), whose sum is σ = 64423740124800. Its totient is φ = 10223276106240.

The previous prime is 28117741577857. The next prime is 28117741577873. The reversal of 28117741577860 is 6877514771182.

It is a junction number, because it is equal to n+sod(n) for n = 28117741577792 and 28117741577801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6820560 + ... + 10136839.

It is an arithmetic number, because the mean of its divisors is an integer number (1342161252600).

Almost surely, 2^{28117741577860} is an apocalyptic number.

28117741577860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28117741577860 is an abundant number, since it is smaller than the sum of its proper divisors (36305998546940).

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

28117741577860 is a wasteful number, since it uses less digits than its factorization.

28117741577860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16964956 (or 16964954 counting only the distinct ones).

The product of its (nonzero) digits is 36879360, while the sum is 64.

The spelling of 28117741577860 in words is "twenty-eight trillion, one hundred seventeen billion, seven hundred forty-one million, five hundred seventy-seven thousand, eight hundred sixty".