71534437324 has 36 divisors (see below), whose sum is σ = 145699095360. Its totient is φ = 30641738400.

The previous prime is 71534437313. The next prime is 71534437333. The reversal of 71534437324 is 42373443517.

It is a happy number.

It is a super-2 number, since 2×71534437324² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288862 + ... + 475930.

Almost surely, 2^71534437324 is an apocalyptic number.

It is an amenable number.

71534437324 is an abundant number, since it is smaller than the sum of its proper divisors (74164658036).

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

71534437324 is a wasteful number, since it uses less digits than its factorization.

71534437324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189038 (or 189029 counting only the distinct ones).

The product of its digits is 846720, while the sum is 43.

The spelling of 71534437324 in words is "seventy-one billion, five hundred thirty-four million, four hundred thirty-seven thousand, three hundred twenty-four".