475438977473 has 2 divisors, whose sum is σ = 475438977474. Its totient is φ = 475438977472.

The previous prime is 475438977469. The next prime is 475438977511. The reversal of 475438977473 is 374779834574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330375497089 + 145063480384 = 574783^2 + 380872^2 .

It is a cyclic number.

It is not a de Polignac number, because 475438977473 - 2² = 475438977469 is a prime.

It is not a weakly prime, because it can be changed into another prime (475438977973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237719488736 + 237719488737.

It is an arithmetic number, because the mean of its divisors is an integer number (237719488737).

Almost surely, 2^475438977473 is an apocalyptic number.

It is an amenable number.

475438977473 is a deficient number, since it is larger than the sum of its proper divisors (1).

475438977473 is an equidigital number, since it uses as much as digits as its factorization.

475438977473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497871360, while the sum is 68.

The spelling of 475438977473 in words is "four hundred seventy-five billion, four hundred thirty-eight million, nine hundred seventy-seven thousand, four hundred seventy-three".