472811017575557 has 4 divisors (see below), whose sum is σ = 473582324293260. Its totient is φ = 472039710857856.

The previous prime is 472811017575553. The next prime is 472811017575601. The reversal of 472811017575557 is 755575710118274.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102370706501281 + 370440311074276 = 10117841^2 + 19246826^2 .

It is a cyclic number.

It is not a de Polignac number, because 472811017575557 - 2² = 472811017575553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 472811017575493 and 472811017575502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472811017575553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385653357932 + ... + 385653359157.

It is an arithmetic number, because the mean of its divisors is an integer number (118395581073315).

Almost surely, 2^{472811017575557} is an apocalyptic number.

It is an amenable number.

472811017575557 is a deficient number, since it is larger than the sum of its proper divisors (771306717703).

472811017575557 is an equidigital number, since it uses as much as digits as its factorization.

472811017575557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771306717702.

The product of its (nonzero) digits is 96040000, while the sum is 65.

The spelling of 472811017575557 in words is "four hundred seventy-two trillion, eight hundred eleven billion, seventeen million, five hundred seventy-five thousand, five hundred fifty-seven".