27755408807 has 4 divisors (see below), whose sum is σ = 31720467216. Its totient is φ = 23790350400.

The previous prime is 27755408803. The next prime is 27755408833. The reversal of 27755408807 is 70880455772.

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 27755408807 - 2² = 27755408803 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 (27755408801) 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, 1982529194 + ... + 1982529207.

It is an arithmetic number, because the mean of its divisors is an integer number (7930116804).

Almost surely, 2^27755408807 is an apocalyptic number.

27755408807 is a deficient number, since it is larger than the sum of its proper divisors (3965058409).

27755408807 is an equidigital number, since it uses as much as digits as its factorization.

27755408807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3965058408.

The product of its (nonzero) digits is 4390400, while the sum is 53.

The spelling of 27755408807 in words is "twenty-seven billion, seven hundred fifty-five million, four hundred eight thousand, eight hundred seven".