72471754322243 has 4 divisors (see below), whose sum is σ = 74157143957688. Its totient is φ = 70786364686800.

The previous prime is 72471754322189. The next prime is 72471754322291. The reversal of 72471754322243 is 34222345717427.

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

It is not a de Polignac number, because 72471754322243 - 2⁶ = 72471754322179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72471754322743) 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, 842694817658 + ... + 842694817743.

It is an arithmetic number, because the mean of its divisors is an integer number (18539285989422).

Almost surely, 2^{72471754322243} is an apocalyptic number.

72471754322243 is a deficient number, since it is larger than the sum of its proper divisors (1685389635445).

72471754322243 is a wasteful number, since it uses less digits than its factorization.

72471754322243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685389635444.

The product of its digits is 15805440, while the sum is 53.

The spelling of 72471754322243 in words is "seventy-two trillion, four hundred seventy-one billion, seven hundred fifty-four million, three hundred twenty-two thousand, two hundred forty-three".