75875078381 has 2 divisors, whose sum is σ = 75875078382. Its totient is φ = 75875078380.

The previous prime is 75875078297. The next prime is 75875078387. The reversal of 75875078381 is 18387057857.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56648760100 + 19226318281 = 238010^2 + 138659^2 .

It is a cyclic number.

It is not a de Polignac number, because 75875078381 - 2³⁴ = 58695209197 is a prime.

It is a super-2 number, since 2×75875078381² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75875078381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75875078387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37937539190 + 37937539191.

It is an arithmetic number, because the mean of its divisors is an integer number (37937539191).

Almost surely, 2^75875078381 is an apocalyptic number.

It is an amenable number.

75875078381 is a deficient number, since it is larger than the sum of its proper divisors (1).

75875078381 is an equidigital number, since it uses as much as digits as its factorization.

75875078381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13171200, while the sum is 59.

The spelling of 75875078381 in words is "seventy-five billion, eight hundred seventy-five million, seventy-eight thousand, three hundred eighty-one".