28277071821126 has 64 divisors (see below), whose sum is σ = 66148060492800. Its totient is φ = 8929215089568.

The previous prime is 28277071821091. The next prime is 28277071821127. The reversal of 28277071821126 is 62112817077282.

28277071821126 is a `hidden beast` number, since 282 + 7 + 70 + 7 + 182 + 112 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28277071821127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23595016 + ... + 24764468.

It is an arithmetic number, because the mean of its divisors is an integer number (1033563445200).

Almost surely, 2^{28277071821126} is an apocalyptic number.

28277071821126 is an abundant number, since it is smaller than the sum of its proper divisors (37870988671674).

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

28277071821126 is a wasteful number, since it uses less digits than its factorization.

28277071821126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193050 (or 1193044 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 54.

The spelling of 28277071821126 in words is "twenty-eight trillion, two hundred seventy-seven billion, seventy-one million, eight hundred twenty-one thousand, one hundred twenty-six".