71972543741 has 8 divisors (see below), whose sum is σ = 84167227584. Its totient is φ = 60256082880.

The previous prime is 71972543717. The next prime is 71972543749. The reversal of 71972543741 is 14734527917.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71972543741 - 2²⁶ = 71905434877 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 71972543741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71972543749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119555420 + ... + 119556021.

It is an arithmetic number, because the mean of its divisors is an integer number (10520903448).

Almost surely, 2^71972543741 is an apocalyptic number.

It is an amenable number.

71972543741 is a deficient number, since it is larger than the sum of its proper divisors (12194683843).

71972543741 is a wasteful number, since it uses less digits than its factorization.

71972543741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239111491.

The product of its digits is 1481760, while the sum is 50.

The spelling of 71972543741 in words is "seventy-one billion, nine hundred seventy-two million, five hundred forty-three thousand, seven hundred forty-one".