72071750743 has 4 divisors (see below), whose sum is σ = 72073971720. Its totient is φ = 72069529768.

The previous prime is 72071750693. The next prime is 72071750753. The reversal of 72071750743 is 34705717027.

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 72071750743 - 2²⁹ = 71534879831 is a prime.

It is a super-2 number, since 2×72071750743² (a number of 23 digits) contains 22 as substring.

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 72071750743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72071750753) 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, 1061080 + ... + 1126957.

It is an arithmetic number, because the mean of its divisors is an integer number (18018492930).

Almost surely, 2^72071750743 is an apocalyptic number.

72071750743 is a deficient number, since it is larger than the sum of its proper divisors (2220977).

72071750743 is a wasteful number, since it uses less digits than its factorization.

72071750743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220976.

The product of its (nonzero) digits is 288120, while the sum is 43.

The spelling of 72071750743 in words is "seventy-two billion, seventy-one million, seven hundred fifty thousand, seven hundred forty-three".