28327802550780 has 24 divisors (see below), whose sum is σ = 79317847142352. Its totient is φ = 7554080680192.

The previous prime is 28327802550743. The next prime is 28327802550799. The reversal of 28327802550780 is 8705520872382.

It is a self number, because there is not a number n which added to its sum of digits gives 28327802550780.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236065021197 + ... + 236065021316.

It is an arithmetic number, because the mean of its divisors is an integer number (3304910297598).

Almost surely, 2^{28327802550780} is an apocalyptic number.

28327802550780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28327802550780 is an abundant number, since it is smaller than the sum of its proper divisors (50990044591572).

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

28327802550780 is a wasteful number, since it uses less digits than its factorization.

28327802550780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472130042525 (or 472130042523 counting only the distinct ones).

The product of its (nonzero) digits is 15052800, while the sum is 57.

The spelling of 28327802550780 in words is "twenty-eight trillion, three hundred twenty-seven billion, eight hundred two million, five hundred fifty thousand, seven hundred eighty".