71903282688 has 200 divisors, whose sum is σ = 227238850872. Its totient is φ = 22557671424.

The previous prime is 71903282687. The next prime is 71903282699. The reversal of 71903282688 is 88628230917.

It is a happy number.

It is a super-2 number, since 2×71903282688² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71903282687) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 654031 + ... + 756017.

Almost surely, 2^71903282688 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 71903282688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113619425436).

71903282688 is an abundant number, since it is smaller than the sum of its proper divisors (155335568184).

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

71903282688 is a wasteful number, since it uses less digits than its factorization.

71903282688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102034 (or 102009 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 71903282688 in words is "seventy-one billion, nine hundred three million, two hundred eighty-two thousand, six hundred eighty-eight".