27455585905 has 32 divisors (see below), whose sum is σ = 38099040768. Its totient is φ = 18771916800.

The previous prime is 27455585897. The next prime is 27455585909. The reversal of 27455585905 is 50958555472.

It is not a de Polignac number, because 27455585905 - 2³ = 27455585897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27455585909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 835669 + ... + 867901.

It is an arithmetic number, because the mean of its divisors is an integer number (1190595024).

Almost surely, 2^27455585905 is an apocalyptic number.

It is an amenable number.

27455585905 is a deficient number, since it is larger than the sum of its proper divisors (10643454863).

27455585905 is a wasteful number, since it uses less digits than its factorization.

27455585905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33177.

The product of its (nonzero) digits is 12600000, while the sum is 55.

The spelling of 27455585905 in words is "twenty-seven billion, four hundred fifty-five million, five hundred eighty-five thousand, nine hundred five".