401815674318 has 16 divisors (see below), whose sum is σ = 803652800976. Its totient is φ = 133934982720.

The previous prime is 401815674287. The next prime is 401815674319. The reversal of 401815674318 is 813476518104.

It is a super-2 number, since 2×401815674318² (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 (401815674319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645021 + ... + 1104392.

It is an arithmetic number, because the mean of its divisors is an integer number (50228300061).

Almost surely, 2^401815674318 is an apocalyptic number.

401815674318 is an abundant number, since it is smaller than the sum of its proper divisors (401837126658).

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

401815674318 is a wasteful number, since it uses less digits than its factorization.

401815674318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787699.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 401815674318 in words is "four hundred one billion, eight hundred fifteen million, six hundred seventy-four thousand, three hundred eighteen".