71888755465 has 4 divisors (see below), whose sum is σ = 86266506564. Its totient is φ = 57511004368.

The previous prime is 71888755459. The next prime is 71888755517. The reversal of 71888755465 is 56455788817.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54632517696 + 17256237769 = 233736^2 + 131363^2 .

It is a cyclic number.

It is not a de Polignac number, because 71888755465 - 2⁹ = 71888754953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71888755397 and 71888755406.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7188875542 + ... + 7188875551.

It is an arithmetic number, because the mean of its divisors is an integer number (21566626641).

Almost surely, 2^71888755465 is an apocalyptic number.

It is an amenable number.

71888755465 is a deficient number, since it is larger than the sum of its proper divisors (14377751099).

71888755465 is a wasteful number, since it uses less digits than its factorization.

71888755465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14377751098.

The product of its digits is 75264000, while the sum is 64.

The spelling of 71888755465 in words is "seventy-one billion, eight hundred eighty-eight million, seven hundred fifty-five thousand, four hundred sixty-five".