72514388634447 has 32 divisors (see below), whose sum is σ = 97927631424000. Its totient is φ = 47723797552640.

The previous prime is 72514388634397. The next prime is 72514388634511. The reversal of 72514388634447 is 74443688341527.

It is a cyclic number.

It is not a de Polignac number, because 72514388634447 - 2¹⁹ = 72514388110159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72514388634647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 767796454 + ... + 767890892.

It is an arithmetic number, because the mean of its divisors is an integer number (3060238482000).

Almost surely, 2^{72514388634447} is an apocalyptic number.

72514388634447 is a deficient number, since it is larger than the sum of its proper divisors (25413242789553).

72514388634447 is a wasteful number, since it uses less digits than its factorization.

72514388634447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99071.

The product of its digits is 433520640, while the sum is 66.

The spelling of 72514388634447 in words is "seventy-two trillion, five hundred fourteen billion, three hundred eighty-eight million, six hundred thirty-four thousand, four hundred forty-seven".