75818745913 has 2 divisors, whose sum is σ = 75818745914. Its totient is φ = 75818745912.

The previous prime is 75818745829. The next prime is 75818745917. The reversal of 75818745913 is 31954781857.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75777426729 + 41319184 = 275277^2 + 6428^2 .

It is a cyclic number.

It is not a de Polignac number, because 75818745913 - 2²⁹ = 75281875001 is a prime.

It is not a weakly prime, because it can be changed into another prime (75818745917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37909372956 + 37909372957.

It is an arithmetic number, because the mean of its divisors is an integer number (37909372957).

Almost surely, 2^75818745913 is an apocalyptic number.

It is an amenable number.

75818745913 is a deficient number, since it is larger than the sum of its proper divisors (1).

75818745913 is an equidigital number, since it uses as much as digits as its factorization.

75818745913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8467200, while the sum is 58.

The spelling of 75818745913 in words is "seventy-five billion, eight hundred eighteen million, seven hundred forty-five thousand, nine hundred thirteen".