75505415879 has 2 divisors, whose sum is σ = 75505415880. Its totient is φ = 75505415878.

The previous prime is 75505415837. The next prime is 75505415891. The reversal of 75505415879 is 97851450557.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75505415879 - 2¹⁶ = 75505350343 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75505415819) 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, 37752707939 + 37752707940.

It is an arithmetic number, because the mean of its divisors is an integer number (37752707940).

Almost surely, 2^75505415879 is an apocalyptic number.

75505415879 is a deficient number, since it is larger than the sum of its proper divisors (1).

75505415879 is an equidigital number, since it uses as much as digits as its factorization.

75505415879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820000, while the sum is 56.

The spelling of 75505415879 in words is "seventy-five billion, five hundred five million, four hundred fifteen thousand, eight hundred seventy-nine".