72969329061 has 16 divisors (see below), whose sum is σ = 108160012800. Its totient is φ = 48620433024.

The previous prime is 72969329009. The next prime is 72969329089. The reversal of 72969329061 is 16092396927.

72969329061 is a `hidden beast` number, since 7 + 296 + 9 + 3 + 290 + 61 = 666.

It is not a de Polignac number, because 72969329061 - 2⁶ = 72969328997 is a prime.

It is a super-2 number, since 2×72969329061² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72969328989 and 72969329007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72969129061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664341 + ... + 766346.

It is an arithmetic number, because the mean of its divisors is an integer number (6760000800).

Almost surely, 2^72969329061 is an apocalyptic number.

It is an amenable number.

72969329061 is a deficient number, since it is larger than the sum of its proper divisors (35190683739).

72969329061 is a wasteful number, since it uses less digits than its factorization.

72969329061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432585 (or 1432579 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The spelling of 72969329061 in words is "seventy-two billion, nine hundred sixty-nine million, three hundred twenty-nine thousand, sixty-one".