27650411513 has 4 divisors (see below), whose sum is σ = 27667683828. Its totient is φ = 27633139200.

The previous prime is 27650411507. The next prime is 27650411519. The reversal of 27650411513 is 31511405672.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (27650411507) and next prime (27650411519).

It can be written as a sum of positive squares in 2 ways, for example, as 15836460649 + 11813950864 = 125843^2 + 108692^2 .

It is a cyclic number.

It is not a de Polignac number, because 27650411513 - 2³⁰ = 26576669689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27650411519) 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, 8633756 + ... + 8636957.

It is an arithmetic number, because the mean of its divisors is an integer number (6916920957).

Almost surely, 2^27650411513 is an apocalyptic number.

It is an amenable number.

27650411513 is a deficient number, since it is larger than the sum of its proper divisors (17272315).

27650411513 is a wasteful number, since it uses less digits than its factorization.

27650411513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17272314.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 27650411513 in words is "twenty-seven billion, six hundred fifty million, four hundred eleven thousand, five hundred thirteen".