402543068928 has 1728 divisors, whose sum is σ = 1603448340480. Its totient is φ = 87787929600.

The previous prime is 402543068927. The next prime is 402543068951. The reversal of 402543068928 is 829860345204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402543068923) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3169630401 + ... + 3169630527.

Almost surely, 2^402543068928 is an apocalyptic number.

402543068928 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402543068928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801724170240).

402543068928 is an abundant number, since it is smaller than the sum of its proper divisors (1200905271552).

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

402543068928 is a wasteful number, since it uses less digits than its factorization.

402543068928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 402543068928 in words is "four hundred two billion, five hundred forty-three million, sixty-eight thousand, nine hundred twenty-eight".