427327742178 has 40 divisors (see below), whose sum is σ = 980885103660. Its totient is φ = 138968369280.

The previous prime is 427327742161. The next prime is 427327742189. The reversal of 427327742178 is 871247723724.

427327742178 is a `hidden beast` number, since 427 + 3 + 2 + 7 + 7 + 42 + 178 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 366839782929 + 60487959249 = 605673^2 + 245943^2 .

It is a super-3 number, since 3×427327742178³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32161963 + ... + 32175246.

Almost surely, 2^427327742178 is an apocalyptic number.

427327742178 is an abundant number, since it is smaller than the sum of its proper divisors (553557361482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427327742178 is a wasteful number, since it uses less digits than its factorization.

427327742178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64337264 (or 64337255 counting only the distinct ones).

The product of its digits is 7375872, while the sum is 54.

The spelling of 427327742178 in words is "four hundred twenty-seven billion, three hundred twenty-seven million, seven hundred forty-two thousand, one hundred seventy-eight".