71440689895 has 16 divisors (see below), whose sum is σ = 86234018112. Its totient is φ = 56816179200.

The previous prime is 71440689877. The next prime is 71440689917. The reversal of 71440689895 is 59898604417.

It is not a de Polignac number, because 71440689895 - 2⁷ = 71440689767 is a prime.

It is a super-2 number, since 2×71440689895² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1376670 + ... + 1427620.

It is an arithmetic number, because the mean of its divisors is an integer number (5389626132).

Almost surely, 2^71440689895 is an apocalyptic number.

71440689895 is a deficient number, since it is larger than the sum of its proper divisors (14793328217).

71440689895 is a wasteful number, since it uses less digits than its factorization.

71440689895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52602.

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 71440689895 in words is "seventy-one billion, four hundred forty million, six hundred eighty-nine thousand, eight hundred ninety-five".