27775040478576 has 160 divisors (see below), whose sum is σ = 74575293542400. Its totient is φ = 8898331852800.

The previous prime is 27775040478557. The next prime is 27775040478629. The reversal of 27775040478576 is 67587404057772.

It is a super-2 number, since 2×27775040478576² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27775040478576.

It is a congruent number.

It is an unprimeable number.

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, 171942486 + ... + 172103946.

It is an arithmetic number, because the mean of its divisors is an integer number (466095584640).

Almost surely, 2^{27775040478576} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27775040478576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37287646771200).

27775040478576 is an abundant number, since it is smaller than the sum of its proper divisors (46800253063824).

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

27775040478576 is a wasteful number, since it uses less digits than its factorization.

27775040478576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162295 (or 162289 counting only the distinct ones).

The product of its (nonzero) digits is 645388800, while the sum is 69.

The spelling of 27775040478576 in words is "twenty-seven trillion, seven hundred seventy-five billion, forty million, four hundred seventy-eight thousand, five hundred seventy-six".