427871589867 has 40 divisors (see below), whose sum is σ = 681704399376. Its totient is φ = 266508707328.

The previous prime is 427871589841. The next prime is 427871589889. The reversal of 427871589867 is 768985178724.

427871589867 is a `hidden beast` number, since 427 + 8 + 7 + 1 + 58 + 98 + 67 = 666.

It is not a de Polignac number, because 427871589867 - 2⁸ = 427871589611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 427871589795 and 427871589804.

It is not an unprimeable number, because it can be changed into a prime (427871489867) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 945393 + ... + 1322690.

Almost surely, 2^427871589867 is an apocalyptic number.

427871589867 is a deficient number, since it is larger than the sum of its proper divisors (253832809509).

427871589867 is a wasteful number, since it uses less digits than its factorization.

427871589867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268249 (or 2268240 counting only the distinct ones).

The product of its digits is 379330560, while the sum is 72.

The spelling of 427871589867 in words is "four hundred twenty-seven billion, eight hundred seventy-one million, five hundred eighty-nine thousand, eight hundred sixty-seven".