71245471464 has 96 divisors (see below), whose sum is σ = 203320915200. Its totient is φ = 22475439360.

The previous prime is 71245471463. The next prime is 71245471477. The reversal of 71245471464 is 46417454217.

71245471464 is a `hidden beast` number, since 71 + 2 + 4 + 54 + 71 + 464 = 666.

It is not an unprimeable number, because it can be changed into a prime (71245471463) 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 23 ways as a sum of consecutive naturals, for example, 1329412 + ... + 1381964.

It is an arithmetic number, because the mean of its divisors is an integer number (2117926200).

Almost surely, 2^71245471464 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 71245471464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101660457600).

71245471464 is an abundant number, since it is smaller than the sum of its proper divisors (132075443736).

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

71245471464 is a wasteful number, since it uses less digits than its factorization.

71245471464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53575 (or 53568 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The spelling of 71245471464 in words is "seventy-one billion, two hundred forty-five million, four hundred seventy-one thousand, four hundred sixty-four".