723731532272 has 80 divisors (see below), whose sum is σ = 1656978446592. Its totient is φ = 299777226240.

The previous prime is 723731532217. The next prime is 723731532287. The reversal of 723731532272 is 272235137327.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245138 + ... + 1227825.

Almost surely, 2^723731532272 is an apocalyptic number.

It is an amenable number.

723731532272 is an abundant number, since it is smaller than the sum of its proper divisors (933246914320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

723731532272 is a wasteful number, since it uses less digits than its factorization.

723731532272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473126 (or 1473120 counting only the distinct ones).

The product of its digits is 740880, while the sum is 44.

Adding to 723731532272 its reverse (272235137327), we get a palindrome (995966669599).

The spelling of 723731532272 in words is "seven hundred twenty-three billion, seven hundred thirty-one million, five hundred thirty-two thousand, two hundred seventy-two".