75815000641 has 2 divisors, whose sum is σ = 75815000642. Its totient is φ = 75815000640.

The previous prime is 75815000633. The next prime is 75815000699. The reversal of 75815000641 is 14600051857.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71064896400 + 4750104241 = 266580^2 + 68921^2 .

It is a cyclic number.

It is not a de Polignac number, because 75815000641 - 2³ = 75815000633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75815000641.

It is not a weakly prime, because it can be changed into another prime (75815000621) 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, 37907500320 + 37907500321.

It is an arithmetic number, because the mean of its divisors is an integer number (37907500321).

Almost surely, 2^75815000641 is an apocalyptic number.

It is an amenable number.

75815000641 is a deficient number, since it is larger than the sum of its proper divisors (1).

75815000641 is an equidigital number, since it uses as much as digits as its factorization.

75815000641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 37.

The spelling of 75815000641 in words is "seventy-five billion, eight hundred fifteen million, six hundred forty-one", and thus it is an aban number.