71430528000 has 704 divisors, whose sum is σ = 262874102400. Its totient is φ = 17104896000.

The previous prime is 71430527999. The next prime is 71430528031. The reversal of 71430528000 is 82503417.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 204671826 + ... + 204672174.

Almost surely, 2^71430528000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71430528000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131437051200).

71430528000 is an abundant number, since it is smaller than the sum of its proper divisors (191443574400).

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

71430528000 is a wasteful number, since it uses less digits than its factorization.

71430528000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The spelling of 71430528000 in words is "seventy-one billion, four hundred thirty million, five hundred twenty-eight thousand".