427331774321 has 4 divisors (see below), whose sum is σ = 427353795072. Its totient is φ = 427309753572.

The previous prime is 427331774297. The next prime is 427331774341. The reversal of 427331774321 is 123477133724.

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-427331774321 is a prime.

It is a super-2 number, since 2×427331774321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427331774341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10981241 + ... + 11020086.

It is an arithmetic number, because the mean of its divisors is an integer number (106838448768).

Almost surely, 2^427331774321 is an apocalyptic number.

It is an amenable number.

427331774321 is a deficient number, since it is larger than the sum of its proper divisors (22020751).

427331774321 is a wasteful number, since it uses less digits than its factorization.

427331774321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22020750.

The product of its digits is 592704, while the sum is 44.

The spelling of 427331774321 in words is "four hundred twenty-seven billion, three hundred thirty-one million, seven hundred seventy-four thousand, three hundred twenty-one".