71222881583 has 4 divisors (see below), whose sum is σ = 81397578960. Its totient is φ = 61048184208.

The previous prime is 71222881501. The next prime is 71222881601. The reversal of 71222881583 is 38518822217.

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

It is a cyclic number.

It is not a de Polignac number, because 71222881583 - 2²⁶ = 71155772719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71222880583) 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, 5087348678 + ... + 5087348691.

It is an arithmetic number, because the mean of its divisors is an integer number (20349394740).

Almost surely, 2^71222881583 is an apocalyptic number.

71222881583 is a deficient number, since it is larger than the sum of its proper divisors (10174697377).

71222881583 is a wasteful number, since it uses less digits than its factorization.

71222881583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10174697376.

The product of its digits is 430080, while the sum is 47.

The spelling of 71222881583 in words is "seventy-one billion, two hundred twenty-two million, eight hundred eighty-one thousand, five hundred eighty-three".