27776574854568 has 96 divisors (see below), whose sum is σ = 75651792303360. Its totient is φ = 9206737499520.

The previous prime is 27776574854563. The next prime is 27776574854599. The reversal of 27776574854568 is 86545847567772.

27776574854568 is a `hidden beast` number, since 2 + 7 + 7 + 7 + 6 + 5 + 7 + 4 + 8 + 545 + 68 = 666.

It is a super-2 number, since 2×27776574854568² (a number of 28 digits) contains 22 as substring.

Its product of digits (22127616000) is a multiple of the sum of its prime divisors (224000).

It is not an unprimeable number, because it can be changed into a prime (27776574854563) 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, 129783021 + ... + 129996867.

It is an arithmetic number, because the mean of its divisors is an integer number (788039503160).

Almost surely, 2^{27776574854568} 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 27776574854568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37825896151680).

27776574854568 is an abundant number, since it is smaller than the sum of its proper divisors (47875217448792).

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

27776574854568 is a wasteful number, since it uses less digits than its factorization.

27776574854568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224007 (or 224000 counting only the distinct ones).

The product of its digits is 22127616000, while the sum is 81.

The spelling of 27776574854568 in words is "twenty-seven trillion, seven hundred seventy-six billion, five hundred seventy-four million, eight hundred fifty-four thousand, five hundred sixty-eight".