72530755642444 has 24 divisors (see below), whose sum is σ = 138497062446288. Its totient is φ = 32961559525440.

The previous prime is 72530755642441. The next prime is 72530755642451. The reversal of 72530755642444 is 44424655703527.

It is not an unprimeable number, because it can be changed into a prime (72530755642441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173933547 + ... + 174350050.

It is an arithmetic number, because the mean of its divisors is an integer number (5770710935262).

Almost surely, 2^{72530755642444} is an apocalyptic number.

It is an amenable number.

72530755642444 is a deficient number, since it is larger than the sum of its proper divisors (65966306803844).

72530755642444 is a wasteful number, since it uses less digits than its factorization.

72530755642444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348288345 (or 348288343 counting only the distinct ones).

The product of its (nonzero) digits is 112896000, while the sum is 58.

The spelling of 72530755642444 in words is "seventy-two trillion, five hundred thirty billion, seven hundred fifty-five million, six hundred forty-two thousand, four hundred forty-four".