71052733439 has 4 divisors (see below), whose sum is σ = 72973077624. Its totient is φ = 69132389256.

The previous prime is 71052733421. The next prime is 71052733441. The reversal of 71052733439 is 93433725017.

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 71052733439 - 2³² = 66757766143 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 71052733439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71052738439) 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, 960172037 + ... + 960172110.

It is an arithmetic number, because the mean of its divisors is an integer number (18243269406).

Almost surely, 2^71052733439 is an apocalyptic number.

71052733439 is a deficient number, since it is larger than the sum of its proper divisors (1920344185).

71052733439 is a wasteful number, since it uses less digits than its factorization.

71052733439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920344184.

The product of its (nonzero) digits is 476280, while the sum is 44.

The spelling of 71052733439 in words is "seventy-one billion, fifty-two million, seven hundred thirty-three thousand, four hundred thirty-nine".