475438977511 has 2 divisors, whose sum is σ = 475438977512. Its totient is φ = 475438977510.

The previous prime is 475438977473. The next prime is 475438977553. The reversal of 475438977511 is 115779834574.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 475438977511 - 2¹³ = 475438969319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 475438977511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475438977571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237719488755 + 237719488756.

It is an arithmetic number, because the mean of its divisors is an integer number (237719488756).

Almost surely, 2^475438977511 is an apocalyptic number.

475438977511 is a deficient number, since it is larger than the sum of its proper divisors (1).

475438977511 is an equidigital number, since it uses as much as digits as its factorization.

475438977511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29635200, while the sum is 61.

The spelling of 475438977511 in words is "four hundred seventy-five billion, four hundred thirty-eight million, nine hundred seventy-seven thousand, five hundred eleven".