71438203895 has 32 divisors (see below), whose sum is σ = 91408711680. Its totient is φ = 53471975040.

The previous prime is 71438203891. The next prime is 71438203901. The reversal of 71438203895 is 59830283417.

It is not a de Polignac number, because 71438203895 - 2² = 71438203891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71438203891) 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 31 ways as a sum of consecutive naturals, for example, 14693765 + ... + 14698625.

It is an arithmetic number, because the mean of its divisors is an integer number (2856522240).

Almost surely, 2^71438203895 is an apocalyptic number.

71438203895 is a deficient number, since it is larger than the sum of its proper divisors (19970507785).

71438203895 is a wasteful number, since it uses less digits than its factorization.

71438203895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7655.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 71438203895 in words is "seventy-one billion, four hundred thirty-eight million, two hundred three thousand, eight hundred ninety-five".