71773063021201 has 4 divisors (see below), whose sum is σ = 71773081634304. Its totient is φ = 71773044408100.

The previous prime is 71773063021123. The next prime is 71773063021237. The reversal of 71773063021201 is 10212036037717.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71773063021201 - 2²⁵ = 71773029466769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71773063021501) 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, 1124905 + ... + 12033766.

It is an arithmetic number, because the mean of its divisors is an integer number (17943270408576).

Almost surely, 2^{71773063021201} is an apocalyptic number.

It is an amenable number.

71773063021201 is a deficient number, since it is larger than the sum of its proper divisors (18613103).

71773063021201 is a wasteful number, since it uses less digits than its factorization.

71773063021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18613102.

The product of its (nonzero) digits is 74088, while the sum is 40.

Adding to 71773063021201 its reverse (10212036037717), we get a palindrome (81985099058918).

The spelling of 71773063021201 in words is "seventy-one trillion, seven hundred seventy-three billion, sixty-three million, twenty-one thousand, two hundred one".