72735728119 has 2 divisors, whose sum is σ = 72735728120. Its totient is φ = 72735728118.

The previous prime is 72735728113. The next prime is 72735728179. The reversal of 72735728119 is 91182753727.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72735728119 - 2¹⁷ = 72735597047 is a prime.

It is a super-2 number, since 2×72735728119² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72735728113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36367864059 + 36367864060.

It is an arithmetic number, because the mean of its divisors is an integer number (36367864060).

Almost surely, 2^72735728119 is an apocalyptic number.

72735728119 is a deficient number, since it is larger than the sum of its proper divisors (1).

72735728119 is an equidigital number, since it uses as much as digits as its factorization.

72735728119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1481760, while the sum is 52.

The spelling of 72735728119 in words is "seventy-two billion, seven hundred thirty-five million, seven hundred twenty-eight thousand, one hundred nineteen".