27775775315 has 16 divisors (see below), whose sum is σ = 34792670016. Its totient is φ = 21246825600.

The previous prime is 27775775257. The next prime is 27775775317. The reversal of 27775775315 is 51357757772.

It is not a de Polignac number, because 27775775315 - 2²⁰ = 27774726739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27775775317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286805 + ... + 371225.

It is an arithmetic number, because the mean of its divisors is an integer number (2174541876).

Almost surely, 2^27775775315 is an apocalyptic number.

27775775315 is a deficient number, since it is larger than the sum of its proper divisors (7016894701).

27775775315 is a wasteful number, since it uses less digits than its factorization.

27775775315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87310.

The product of its digits is 12605250, while the sum is 56.

The spelling of 27775775315 in words is "twenty-seven billion, seven hundred seventy-five million, seven hundred seventy-five thousand, three hundred fifteen".