75356838145 has 12 divisors (see below), whose sum is σ = 96060414204. Its totient is φ = 56739265280.

The previous prime is 75356838113. The next prime is 75356838149. The reversal of 75356838145 is 54183865357.

It is a Cunningham number, because it is equal to 274512²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 23386973184 + 51969864961 = 152928^2 + 227969^2 .

It is not a de Polignac number, because 75356838145 - 2⁵ = 75356838113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75356838149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26073586 + ... + 26076475.

It is an arithmetic number, because the mean of its divisors is an integer number (8005034517).

Almost surely, 2^75356838145 is an apocalyptic number.

It is an amenable number.

75356838145 is a deficient number, since it is larger than the sum of its proper divisors (20703576059).

75356838145 is a wasteful number, since it uses less digits than its factorization.

75356838145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52150100 (or 52150083 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 55.

The spelling of 75356838145 in words is "seventy-five billion, three hundred fifty-six million, eight hundred thirty-eight thousand, one hundred forty-five".