257027005827 has 6 divisors (see below), whose sum is σ = 371261230652. Its totient is φ = 171351337212.

The previous prime is 257027005819. The next prime is 257027005861. The reversal of 257027005827 is 728500720752.

257027005827 is a `hidden beast` number, since 2 + 570 + 2 + 7 + 0 + 0 + 58 + 27 = 666.

It is not a de Polignac number, because 257027005827 - 2³ = 257027005819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257027005867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14279278093 + ... + 14279278110.

Almost surely, 2^257027005827 is an apocalyptic number.

257027005827 is a deficient number, since it is larger than the sum of its proper divisors (114234224825).

257027005827 is a wasteful number, since it uses less digits than its factorization.

257027005827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28558556209 (or 28558556206 counting only the distinct ones).

The product of its (nonzero) digits is 548800, while the sum is 45.

The spelling of 257027005827 in words is "two hundred fifty-seven billion, twenty-seven million, five thousand, eight hundred twenty-seven".