72444033044431 has 2 divisors, whose sum is σ = 72444033044432. Its totient is φ = 72444033044430.

The previous prime is 72444033044423. The next prime is 72444033044437. The reversal of 72444033044431 is 13444033044427.

It is a strong prime.

It is an emirp because it is prime and its reverse (13444033044427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72444033044431 - 2³ = 72444033044423 is a prime.

It is a super-2 number, since 2×72444033044431² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72444033044437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36222016522215 + 36222016522216.

It is an arithmetic number, because the mean of its divisors is an integer number (36222016522216).

Almost surely, 2^{72444033044431} is an apocalyptic number.

72444033044431 is a deficient number, since it is larger than the sum of its proper divisors (1).

72444033044431 is an equidigital number, since it uses as much as digits as its factorization.

72444033044431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1548288, while the sum is 43.

Adding to 72444033044431 its reverse (13444033044427), we get a palindrome (85888066088858).

The spelling of 72444033044431 in words is "seventy-two trillion, four hundred forty-four billion, thirty-three million, forty-four thousand, four hundred thirty-one".