72241464631 has 16 divisors (see below), whose sum is σ = 86914483200. Its totient is φ = 58657207968.

The previous prime is 72241464563. The next prime is 72241464641. The reversal of 72241464631 is 13646414227.

It is a happy number.

It is not a de Polignac number, because 72241464631 - 2²¹ = 72239367479 is a prime.

It is a super-2 number, since 2×72241464631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72241464641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3084441 + ... + 3107773.

It is an arithmetic number, because the mean of its divisors is an integer number (5432155200).

Almost surely, 2^72241464631 is an apocalyptic number.

72241464631 is a deficient number, since it is larger than the sum of its proper divisors (14673018569).

72241464631 is a wasteful number, since it uses less digits than its factorization.

72241464631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46638.

The product of its digits is 193536, while the sum is 40.

Adding to 72241464631 its reverse (13646414227), we get a palindrome (85887878858).

The spelling of 72241464631 in words is "seventy-two billion, two hundred forty-one million, four hundred sixty-four thousand, six hundred thirty-one".