72321025265246 has 4 divisors (see below), whose sum is σ = 108481537897872. Its totient is φ = 36160512632622.

The previous prime is 72321025265191. The next prime is 72321025265261. The reversal of 72321025265246 is 64256252012327.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 72321025265246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18080256316310 + ... + 18080256316313.

It is an arithmetic number, because the mean of its divisors is an integer number (27120384474468).

Almost surely, 2^{72321025265246} is an apocalyptic number.

72321025265246 is a deficient number, since it is larger than the sum of its proper divisors (36160512632626).

72321025265246 is a wasteful number, since it uses less digits than its factorization.

72321025265246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36160512632625.

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 72321025265246 in words is "seventy-two trillion, three hundred twenty-one billion, twenty-five million, two hundred sixty-five thousand, two hundred forty-six".