75928357909 has 2 divisors, whose sum is σ = 75928357910. Its totient is φ = 75928357908.

The previous prime is 75928357889. The next prime is 75928357991. The reversal of 75928357909 is 90975382957.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63162747684 + 12765610225 = 251322^2 + 112985^2 .

It is a cyclic number.

It is not a de Polignac number, because 75928357909 - 2²¹ = 75926260757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75928367909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37964178954 + 37964178955.

It is an arithmetic number, because the mean of its divisors is an integer number (37964178955).

Almost surely, 2^75928357909 is an apocalyptic number.

It is an amenable number.

75928357909 is a deficient number, since it is larger than the sum of its proper divisors (1).

75928357909 is an equidigital number, since it uses as much as digits as its factorization.

75928357909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42865200, while the sum is 64.

The spelling of 75928357909 in words is "seventy-five billion, nine hundred twenty-eight million, three hundred fifty-seven thousand, nine hundred nine".