27777525275023 has 4 divisors (see below), whose sum is σ = 28052550277848. Its totient is φ = 27502500272200.

The previous prime is 27777525275021. The next prime is 27777525275081. The reversal of 27777525275023 is 32057252577772.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27777525275023 - 2¹ = 27777525275021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27777525275021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137512501261 + ... + 137512501462.

It is an arithmetic number, because the mean of its divisors is an integer number (7013137569462).

Almost surely, 2^{27777525275023} is an apocalyptic number.

27777525275023 is a deficient number, since it is larger than the sum of its proper divisors (275025002825).

27777525275023 is a wasteful number, since it uses less digits than its factorization.

27777525275023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275025002824.

The product of its (nonzero) digits is 100842000, while the sum is 61.

The spelling of 27777525275023 in words is "twenty-seven trillion, seven hundred seventy-seven billion, five hundred twenty-five million, two hundred seventy-five thousand, twenty-three".