71838304420 has 96 divisors (see below), whose sum is σ = 162021565440. Its totient is φ = 26693715840.

The previous prime is 71838304411. The next prime is 71838304453. The reversal of 71838304420 is 2440383817.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2236675 + ... + 2268565.

It is an arithmetic number, because the mean of its divisors is an integer number (1687724640).

Almost surely, 2^71838304420 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 71838304420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81010782720).

71838304420 is an abundant number, since it is smaller than the sum of its proper divisors (90183261020).

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

71838304420 is a wasteful number, since it uses less digits than its factorization.

71838304420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32065 (or 32063 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 71838304420 in words is "seventy-one billion, eight hundred thirty-eight million, three hundred four thousand, four hundred twenty".