27751741028 has 96 divisors (see below), whose sum is σ = 57000222720. Its totient is φ = 11697143040.

The previous prime is 27751741027. The next prime is 27751741033. The reversal of 27751741028 is 82014715772.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a self number, because there is not a number n which added to its sum of digits gives 27751741028.

It is not an unprimeable number, because it can be changed into a prime (27751741027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4355501 + ... + 4361867.

It is an arithmetic number, because the mean of its divisors is an integer number (593752320).

Almost surely, 2^27751741028 is an apocalyptic number.

It is an amenable number.

27751741028 is an abundant number, since it is smaller than the sum of its proper divisors (29248481692).

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

27751741028 is a wasteful number, since it uses less digits than its factorization.

27751741028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6537 (or 6535 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 44.

The spelling of 27751741028 in words is "twenty-seven billion, seven hundred fifty-one million, seven hundred forty-one thousand, twenty-eight".