475345767543509 has 2 divisors, whose sum is σ = 475345767543510. Its totient is φ = 475345767543508.

The previous prime is 475345767543473. The next prime is 475345767543587. The reversal of 475345767543509 is 905345767543574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258239982603409 + 217105784940100 = 16069847^2 + 14734510^2 .

It is a cyclic number.

It is not a de Polignac number, because 475345767543509 - 2¹² = 475345767539413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475345767546509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237672883771754 + 237672883771755.

It is an arithmetic number, because the mean of its divisors is an integer number (237672883771755).

Almost surely, 2^{475345767543509} is an apocalyptic number.

It is an amenable number.

475345767543509 is a deficient number, since it is larger than the sum of its proper divisors (1).

475345767543509 is an equidigital number, since it uses as much as digits as its factorization.

475345767543509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6667920000, while the sum is 74.

The spelling of 475345767543509 in words is "four hundred seventy-five trillion, three hundred forty-five billion, seven hundred sixty-seven million, five hundred forty-three thousand, five hundred nine".