427115222582681 has 4 divisors (see below), whose sum is σ = 427115322587664. Its totient is φ = 427115122577700.

The previous prime is 427115222582647. The next prime is 427115222582707. The reversal of 427115222582681 is 186285222511724.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427115222582681 is a prime.

It is a super-2 number, since 2×427115222582681² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427115222582641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 43296275 + ... + 52237896.

It is an arithmetic number, because the mean of its divisors is an integer number (106778830646916).

Almost surely, 2^{427115222582681} is an apocalyptic number.

It is an amenable number.

427115222582681 is a deficient number, since it is larger than the sum of its proper divisors (100004983).

427115222582681 is an equidigital number, since it uses as much as digits as its factorization.

427115222582681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100004982.

The product of its digits is 8601600, while the sum is 56.

The spelling of 427115222582681 in words is "four hundred twenty-seven trillion, one hundred fifteen billion, two hundred twenty-two million, five hundred eighty-two thousand, six hundred eighty-one".