72351445152044 has 24 divisors (see below), whose sum is σ = 137874804740400. Its totient is φ = 33089953135680.

The previous prime is 72351445152029. The next prime is 72351445152071. The reversal of 72351445152044 is 44025154415327.

It is a self number, because there is not a number n which added to its sum of digits gives 72351445152044.

It is an unprimeable number.

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, 16413665027 + ... + 16413669434.

It is an arithmetic number, because the mean of its divisors is an integer number (5744783530850).

Almost surely, 2^{72351445152044} is an apocalyptic number.

It is an amenable number.

72351445152044 is a deficient number, since it is larger than the sum of its proper divisors (65523359588356).

72351445152044 is a wasteful number, since it uses less digits than its factorization.

72351445152044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32827334513 (or 32827334511 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 47.

The spelling of 72351445152044 in words is "seventy-two trillion, three hundred fifty-one billion, four hundred forty-five million, one hundred fifty-two thousand, forty-four".