71264431533000 has 128 divisors (see below), whose sum is σ = 222598563707520. Its totient is φ = 18982178553600.

The previous prime is 71264431532993. The next prime is 71264431533013. The reversal of 71264431533000 is 33513446217.

It is a self number, because there is not a number n which added to its sum of digits gives 71264431533000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10912222 + ... + 16174221.

It is an arithmetic number, because the mean of its divisors is an integer number (1739051278965).

Almost surely, 2^{71264431533000} is an apocalyptic number.

It is an amenable number.

71264431533000 is an abundant number, since it is smaller than the sum of its proper divisors (151334132174520).

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

71264431533000 is a wasteful number, since it uses less digits than its factorization.

71264431533000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27087344 (or 27087330 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

Adding to 71264431533000 its reverse (33513446217), we get a palindrome (71297944979217).

The spelling of 71264431533000 in words is "seventy-one trillion, two hundred sixty-four billion, four hundred thirty-one million, five hundred thirty-three thousand".