72153121376212 has 24 divisors (see below), whose sum is σ = 126364174070400. Its totient is φ = 36049074874176.

The previous prime is 72153121376177. The next prime is 72153121376267. The reversal of 72153121376212 is 21267312135127.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90852339 + ... + 91643077.

It is an arithmetic number, because the mean of its divisors is an integer number (5265173919600).

Almost surely, 2^{72153121376212} is an apocalyptic number.

It is an amenable number.

72153121376212 is a deficient number, since it is larger than the sum of its proper divisors (54211052694188).

72153121376212 is a wasteful number, since it uses less digits than its factorization.

72153121376212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808095 (or 808093 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The spelling of 72153121376212 in words is "seventy-two trillion, one hundred fifty-three billion, one hundred twenty-one million, three hundred seventy-six thousand, two hundred twelve".