71838547320 has 64 divisors (see below), whose sum is σ = 221340402720. Its totient is φ = 18639189504.

The previous prime is 71838547301. The next prime is 71838547327. The reversal of 71838547320 is 2374583817.

It is a self number, because there is not a number n which added to its sum of digits gives 71838547320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71838547327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8085487 + ... + 8094366.

Almost surely, 2^71838547320 is an apocalyptic number.

It is an amenable number.

71838547320 is an abundant number, since it is smaller than the sum of its proper divisors (149501855400).

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

71838547320 is a wasteful number, since it uses less digits than its factorization.

71838547320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16179904 (or 16179900 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 71838547320 in words is "seventy-one billion, eight hundred thirty-eight million, five hundred forty-seven thousand, three hundred twenty".