72946640824318 has 16 divisors (see below), whose sum is σ = 109816098732864. Its totient is φ = 36341277265440.

The previous prime is 72946640824313. The next prime is 72946640824319. The reversal of 72946640824318 is 81342804664927.

It is a self number, because there is not a number n which added to its sum of digits gives 72946640824318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72946640824313) 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, 58405771 + ... + 59641657.

It is an arithmetic number, because the mean of its divisors is an integer number (6863506170804).

Almost surely, 2^{72946640824318} is an apocalyptic number.

72946640824318 is a deficient number, since it is larger than the sum of its proper divisors (36869457908546).

72946640824318 is a wasteful number, since it uses less digits than its factorization.

72946640824318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342707.

The product of its (nonzero) digits is 111476736, while the sum is 64.

The spelling of 72946640824318 in words is "seventy-two trillion, nine hundred forty-six billion, six hundred forty million, eight hundred twenty-four thousand, three hundred eighteen".