401831459668 has 6 divisors (see below), whose sum is σ = 703205054426. Its totient is φ = 200915729832.

The previous prime is 401831459663. The next prime is 401831459683. The reversal of 401831459668 is 866954138104.

It can be written as a sum of positive squares in only one way, i.e., 377669244304 + 24162215364 = 614548^2 + 155442^2 .

It is a super-2 number, since 2×401831459668² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401831459663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50228932455 + ... + 50228932462.

Almost surely, 2^401831459668 is an apocalyptic number.

It is an amenable number.

401831459668 is a deficient number, since it is larger than the sum of its proper divisors (301373594758).

401831459668 is a wasteful number, since it uses less digits than its factorization.

401831459668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100457864921 (or 100457864919 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 401831459668 in words is "four hundred one billion, eight hundred thirty-one million, four hundred fifty-nine thousand, six hundred sixty-eight".