72444033044428 has 24 divisors (see below), whose sum is σ = 126843830150688. Its totient is φ = 36202941768576.

The previous prime is 72444033044423. The next prime is 72444033044431. The reversal of 72444033044428 is 82444033044427.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (72444033044423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96145600 + ... + 96896152.

It is an arithmetic number, because the mean of its divisors is an integer number (5285159589612).

Almost surely, 2^{72444033044428} is an apocalyptic number.

It is an amenable number.

72444033044428 is a deficient number, since it is larger than the sum of its proper divisors (54399797106260).

72444033044428 is a wasteful number, since it uses less digits than its factorization.

72444033044428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763233 (or 763231 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 49.

Subtracting 72444033044428 from its reverse (82444033044427), we obtain a palindrome (9999999999999).

The spelling of 72444033044428 in words is "seventy-two trillion, four hundred forty-four billion, thirty-three million, forty-four thousand, four hundred twenty-eight".