27554418797 has 4 divisors (see below), whose sum is σ = 27807211740. Its totient is φ = 27301625856.

The previous prime is 27554418733. The next prime is 27554418799. The reversal of 27554418797 is 79781445572.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24793336681 + 2761082116 = 157459^2 + 52546^2 .

It is a cyclic number.

It is not a de Polignac number, because 27554418797 - 2⁶ = 27554418733 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 (27554418799) 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, 126396308 + ... + 126396525.

It is an arithmetic number, because the mean of its divisors is an integer number (6951802935).

Almost surely, 2^27554418797 is an apocalyptic number.

It is an amenable number.

27554418797 is a deficient number, since it is larger than the sum of its proper divisors (252792943).

27554418797 is a wasteful number, since it uses less digits than its factorization.

27554418797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252792942.

The product of its digits is 19756800, while the sum is 59.

The spelling of 27554418797 in words is "twenty-seven billion, five hundred fifty-four million, four hundred eighteen thousand, seven hundred ninety-seven".