75720413928369 has 16 divisors (see below), whose sum is σ = 116118414570368. Its totient is φ = 42993210454272.

The previous prime is 75720413928293. The next prime is 75720413928371. The reversal of 75720413928369 is 96382931402757.

It is not a de Polignac number, because 75720413928369 - 2⁸ = 75720413928113 is a prime.

It is a super-2 number, since 2×75720413928369² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75720413928169) 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, 11483225992 + ... + 11483232585.

It is an arithmetic number, because the mean of its divisors is an integer number (7257400910648).

It is a 1-persistent number, because it is pandigital, but 2⋅75720413928369 = 151440827856738 is not.

Almost surely, 2^{75720413928369} is an apocalyptic number.

It is an amenable number.

75720413928369 is a deficient number, since it is larger than the sum of its proper divisors (40398000641999).

75720413928369 is a wasteful number, since it uses less digits than its factorization.

75720413928369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22966458744.

The product of its (nonzero) digits is 137168640, while the sum is 66.

The spelling of 75720413928369 in words is "seventy-five trillion, seven hundred twenty billion, four hundred thirteen million, nine hundred twenty-eight thousand, three hundred sixty-nine".