72741558969 has 6 divisors (see below), whose sum is σ = 105071140746. Its totient is φ = 48494372640.

The previous prime is 72741558959. The next prime is 72741558973. The reversal of 72741558969 is 96985514727.

72741558969 is a `hidden beast` number, since 7 + 2 + 7 + 41 + 5 + 589 + 6 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53305574400 + 19435984569 = 230880^2 + 139413^2 .

It is not a de Polignac number, because 72741558969 - 2⁵ = 72741558937 is a prime.

It is a super-2 number, since 2×72741558969² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72741558949) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4041197712 + ... + 4041197729.

It is an arithmetic number, because the mean of its divisors is an integer number (17511856791).

Almost surely, 2^72741558969 is an apocalyptic number.

It is an amenable number.

72741558969 is a deficient number, since it is larger than the sum of its proper divisors (32329581777).

72741558969 is a wasteful number, since it uses less digits than its factorization.

72741558969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8082395447 (or 8082395444 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 63.

The spelling of 72741558969 in words is "seventy-two billion, seven hundred forty-one million, five hundred fifty-eight thousand, nine hundred sixty-nine".