71439088001 has 4 divisors (see below), whose sum is σ = 71439776772. Its totient is φ = 71438399232.

The previous prime is 71439087959. The next prime is 71439088027. The reversal of 71439088001 is 10088093417.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 20893257025 + 50545830976 = 144545^2 + 224824^2 .

It is a cyclic number.

It is not a de Polignac number, because 71439088001 - 2¹⁰ = 71439086977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71439088001.

It is not an unprimeable number, because it can be changed into a prime (71439088081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153560 + ... + 407993.

It is an arithmetic number, because the mean of its divisors is an integer number (17859944193).

Almost surely, 2^71439088001 is an apocalyptic number.

It is an amenable number.

71439088001 is a deficient number, since it is larger than the sum of its proper divisors (688771).

71439088001 is a wasteful number, since it uses less digits than its factorization.

71439088001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688770.

The product of its (nonzero) digits is 48384, while the sum is 41.

The spelling of 71439088001 in words is "seventy-one billion, four hundred thirty-nine million, eighty-eight thousand, one".