27925044528861 has 12 divisors (see below), whose sum is σ = 40336248709692. Its totient is φ = 18616662531456.

The previous prime is 27925044528859. The next prime is 27925044528863. The reversal of 27925044528861 is 16882544052972.

27925044528861 is a `hidden beast` number, since 2 + 7 + 9 + 2 + 5 + 0 + 44 + 528 + 8 + 61 = 666.

It is an interprime number because it is at equal distance from previous prime (27925044528859) and next prime (27925044528863).

It can be written as a sum of positive squares in 2 ways, for example, as 26306281971225 + 1618762557636 = 5128965^2 + 1272306^2 .

It is not a de Polignac number, because 27925044528861 - 2¹ = 27925044528859 is a prime.

It is a super-2 number, since 2×27925044528861² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27925044528863) 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, 3055015 + ... + 8073611.

It is an arithmetic number, because the mean of its divisors is an integer number (3361354059141).

Almost surely, 2^{27925044528861} is an apocalyptic number.

It is an amenable number.

27925044528861 is a deficient number, since it is larger than the sum of its proper divisors (12411204180831).

27925044528861 is a wasteful number, since it uses less digits than its factorization.

27925044528861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5636860 (or 5636857 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 63.

The spelling of 27925044528861 in words is "twenty-seven trillion, nine hundred twenty-five billion, forty-four million, five hundred twenty-eight thousand, eight hundred sixty-one".