72240424001 has 16 divisors (see below), whose sum is σ = 77952080640. Its totient is φ = 66722071680.

The previous prime is 72240423991. The next prime is 72240424033. The reversal of 72240424001 is 10042404227.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72240424001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72240420001) 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, 1099976 + ... + 1163798.

It is an arithmetic number, because the mean of its divisors is an integer number (4872005040).

Almost surely, 2^72240424001 is an apocalyptic number.

It is an amenable number.

72240424001 is a deficient number, since it is larger than the sum of its proper divisors (5711656639).

72240424001 is a wasteful number, since it uses less digits than its factorization.

72240424001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65336.

The product of its (nonzero) digits is 3584, while the sum is 26.

Adding to 72240424001 its reverse (10042404227), we get a palindrome (82282828228).

The spelling of 72240424001 in words is "seventy-two billion, two hundred forty million, four hundred twenty-four thousand, one".