27156749608 has 8 divisors (see below), whose sum is σ = 50918905530. Its totient is φ = 13578374800.

The previous prime is 27156749593. The next prime is 27156749617. The reversal of 27156749608 is 80694765172.

It can be written as a sum of positive squares in only one way, i.e., 14032297764 + 13124451844 = 118458^2 + 114562^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×27156749608³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1697296843 + ... + 1697296858.

Almost surely, 2^27156749608 is an apocalyptic number.

It is an amenable number.

27156749608 is a deficient number, since it is larger than the sum of its proper divisors (23762155922).

27156749608 is a wasteful number, since it uses less digits than its factorization.

27156749608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394593707 (or 3394593703 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 27156749608 in words is "twenty-seven billion, one hundred fifty-six million, seven hundred forty-nine thousand, six hundred eight".