427181642322 has 8 divisors (see below), whose sum is σ = 854363284656. Its totient is φ = 142393880772.

The previous prime is 427181642299. The next prime is 427181642339. The reversal of 427181642322 is 223246181724.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

427181642322 is an admirable number.

It is a super-2 number, since 2×427181642322² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35598470188 + ... + 35598470199.

It is an arithmetic number, because the mean of its divisors is an integer number (106795410582).

Almost surely, 2^427181642322 is an apocalyptic number.

427181642322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

427181642322 is a wasteful number, since it uses less digits than its factorization.

427181642322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71196940392.

The product of its digits is 258048, while the sum is 42.

The spelling of 427181642322 in words is "four hundred twenty-seven billion, one hundred eighty-one million, six hundred forty-two thousand, three hundred twenty-two".