71394535400 has 24 divisors (see below), whose sum is σ = 165992295270. Its totient is φ = 28557814080.

The previous prime is 71394535361. The next prime is 71394535403. The reversal of 71394535400 is 453549317.

It can be written as a sum of positive squares in 3 ways, for example, as 61719452356 + 9675083044 = 248434^2 + 98362^2 .

It is not an unprimeable number, because it can be changed into a prime (71394535403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178486139 + ... + 178486538.

Almost surely, 2^71394535400 is an apocalyptic number.

It is an amenable number.

71394535400 is an abundant number, since it is smaller than the sum of its proper divisors (94597759870).

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

71394535400 is a wasteful number, since it uses less digits than its factorization.

71394535400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356972693 (or 356972684 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 71394535400 in words is "seventy-one billion, three hundred ninety-four million, five hundred thirty-five thousand, four hundred".