72289734461571 has 16 divisors (see below), whose sum is σ = 105166700622720. Its totient is φ = 43804461966720.

The previous prime is 72289734461449. The next prime is 72289734461579. The reversal of 72289734461571 is 17516443798227.

It is a happy number.

It is not a de Polignac number, because 72289734461571 - 2¹⁵ = 72289734428803 is a prime.

It is a super-3 number, since 3×72289734461571³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (72289734461579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187262086 + ... + 187647723.

It is an arithmetic number, because the mean of its divisors is an integer number (6572918788920).

Almost surely, 2^{72289734461571} is an apocalyptic number.

72289734461571 is a deficient number, since it is larger than the sum of its proper divisors (32876966161149).

72289734461571 is a wasteful number, since it uses less digits than its factorization.

72289734461571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374915666.

The product of its digits is 142248960, while the sum is 66.

The spelling of 72289734461571 in words is "seventy-two trillion, two hundred eighty-nine billion, seven hundred thirty-four million, four hundred sixty-one thousand, five hundred seventy-one".