27569025128 has 8 divisors (see below), whose sum is σ = 51691922130. Its totient is φ = 13784512560.

The previous prime is 27569025101. The next prime is 27569025149. The reversal of 27569025128 is 82152096572.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26373110404 + 1195914724 = 162398^2 + 34582^2 .

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

It is a super-2 number, since 2×27569025128² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1723064063 + ... + 1723064078.

Almost surely, 2^27569025128 is an apocalyptic number.

It is an amenable number.

27569025128 is a deficient number, since it is larger than the sum of its proper divisors (24122897002).

27569025128 is a wasteful number, since it uses less digits than its factorization.

27569025128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3446128147 (or 3446128143 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 27569025128 in words is "twenty-seven billion, five hundred sixty-nine million, twenty-five thousand, one hundred twenty-eight".