71438937760 has 96 divisors (see below), whose sum is σ = 170586404352. Its totient is φ = 28269373440.

The previous prime is 71438937743. The next prime is 71438937781. The reversal of 71438937760 is 6773983417.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24405417 + ... + 24408343.

It is an arithmetic number, because the mean of its divisors is an integer number (1776941712).

Almost surely, 2^71438937760 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 71438937760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85293202176).

71438937760 is an abundant number, since it is smaller than the sum of its proper divisors (99147466592).

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

71438937760 is a wasteful number, since it uses less digits than its factorization.

71438937760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4526 (or 4518 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 55.

The spelling of 71438937760 in words is "seventy-one billion, four hundred thirty-eight million, nine hundred thirty-seven thousand, seven hundred sixty".