723393972272 has 40 divisors (see below), whose sum is σ = 1405249344000. Its totient is φ = 360749579840.

The previous prime is 723393972271. The next prime is 723393972289. The reversal of 723393972272 is 272279393327.

It is not an unprimeable number, because it can be changed into a prime (723393972271) 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, 21239897 + ... + 21273927.

It is an arithmetic number, because the mean of its divisors is an integer number (35131233600).

Almost surely, 2^723393972272 is an apocalyptic number.

It is an amenable number.

723393972272 is a deficient number, since it is larger than the sum of its proper divisors (681855371728).

723393972272 is a wasteful number, since it uses less digits than its factorization.

723393972272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37481 (or 37475 counting only the distinct ones).

The product of its digits is 12002256, while the sum is 56.

The spelling of 723393972272 in words is "seven hundred twenty-three billion, three hundred ninety-three million, nine hundred seventy-two thousand, two hundred seventy-two".