71957115384 has 384 divisors, whose sum is σ = 232986378240. Its totient is φ = 18117792000.

The previous prime is 71957115383. The next prime is 71957115397. The reversal of 71957115384 is 48351175917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71957115383) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 166953649 + ... + 166954079.

It is an arithmetic number, because the mean of its divisors is an integer number (606735360).

Almost surely, 2^71957115384 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 71957115384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116493189120).

71957115384 is an abundant number, since it is smaller than the sum of its proper divisors (161029262856).

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

71957115384 is a wasteful number, since it uses less digits than its factorization.

71957115384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 688 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 51.

The spelling of 71957115384 in words is "seventy-one billion, nine hundred fifty-seven million, one hundred fifteen thousand, three hundred eighty-four".