27510676661 has 12 divisors (see below), whose sum is σ = 30062987460. Its totient is φ = 25161477120.

The previous prime is 27510676651. The next prime is 27510676681. The reversal of 27510676661 is 16667601572.

It can be written as a sum of positive squares in 6 ways, for example, as 56175025 + 27454501636 = 7495^2 + 165694^2 .

It is not a de Polignac number, because 27510676661 - 2¹⁴ = 27510660277 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 (27510676651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 728300 + ... + 765141.

It is an arithmetic number, because the mean of its divisors is an integer number (2505248955).

Almost surely, 2^27510676661 is an apocalyptic number.

It is an amenable number.

27510676661 is a deficient number, since it is larger than the sum of its proper divisors (2552310799).

27510676661 is a wasteful number, since it uses less digits than its factorization.

27510676661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493576 (or 1493563 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 27510676661 in words is "twenty-seven billion, five hundred ten million, six hundred seventy-six thousand, six hundred sixty-one".