28127550550 has 48 divisors (see below), whose sum is σ = 57161488752. Its totient is φ = 10212406400.

The previous prime is 28127550547. The next prime is 28127550559. The reversal of 28127550550 is 5505572182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28127550559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 319992 + ... + 398308.

It is an arithmetic number, because the mean of its divisors is an integer number (1190864349).

Almost surely, 2^28127550550 is an apocalyptic number.

28127550550 is an abundant number, since it is smaller than the sum of its proper divisors (29033938202).

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

28127550550 is a wasteful number, since it uses less digits than its factorization.

28127550550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78993 (or 78988 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 40.

The spelling of 28127550550 in words is "twenty-eight billion, one hundred twenty-seven million, five hundred fifty thousand, five hundred fifty".