72289264733 has 6 divisors (see below), whose sum is σ = 84091593726. Its totient is φ = 61962226872.

The previous prime is 72289264727. The next prime is 72289264741. The reversal of 72289264733 is 33746298227.

It can be written as a sum of positive squares in only one way, i.e., 38213212324 + 34076052409 = 195482^2 + 184597^2 .

It is not a de Polignac number, because 72289264733 - 2⁶ = 72289264669 is a prime.

It is a super-2 number, since 2×72289264733² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72289264133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 737645510 + ... + 737645607.

It is an arithmetic number, because the mean of its divisors is an integer number (14015265621).

Almost surely, 2^72289264733 is an apocalyptic number.

It is an amenable number.

72289264733 is a deficient number, since it is larger than the sum of its proper divisors (11802328993).

72289264733 is a wasteful number, since it uses less digits than its factorization.

72289264733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475291131 (or 1475291124 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 53.

The spelling of 72289264733 in words is "seventy-two billion, two hundred eighty-nine million, two hundred sixty-four thousand, seven hundred thirty-three".