71722005007 has 4 divisors (see below), whose sum is σ = 75940946496. Its totient is φ = 67503063520.

The previous prime is 71722005001. The next prime is 71722005031. The reversal of 71722005007 is 70050022717.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70050022717 = 70619 ⋅991943.

It is a cyclic number.

It is not a de Polignac number, because 71722005007 - 2¹⁵ = 71721972239 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 71722005007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71722005001) 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, 2109470719 + ... + 2109470752.

It is an arithmetic number, because the mean of its divisors is an integer number (18985236624).

Almost surely, 2^71722005007 is an apocalyptic number.

71722005007 is a deficient number, since it is larger than the sum of its proper divisors (4218941489).

71722005007 is a wasteful number, since it uses less digits than its factorization.

71722005007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218941488.

The product of its (nonzero) digits is 6860, while the sum is 31.

The spelling of 71722005007 in words is "seventy-one billion, seven hundred twenty-two million, five thousand, seven".