27072522817 has 4 divisors (see below), whose sum is σ = 27285692416. Its totient is φ = 26859353220.

The previous prime is 27072522773. The next prime is 27072522823. The reversal of 27072522817 is 71822527072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27072522817 - 2⁷ = 27072522689 is a prime.

It is a super-3 number, since 3×27072522817³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27072522887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106584609 + ... + 106584862.

It is an arithmetic number, because the mean of its divisors is an integer number (6821423104).

Almost surely, 2^27072522817 is an apocalyptic number.

It is an amenable number.

27072522817 is a deficient number, since it is larger than the sum of its proper divisors (213169599).

27072522817 is a wasteful number, since it uses less digits than its factorization.

27072522817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213169598.

The product of its (nonzero) digits is 219520, while the sum is 43.

The spelling of 27072522817 in words is "twenty-seven billion, seventy-two million, five hundred twenty-two thousand, eight hundred seventeen".