477245317081 has 4 divisors (see below), whose sum is σ = 513956495332. Its totient is φ = 440534138832.

The previous prime is 477245317027. The next prime is 477245317093. The reversal of 477245317081 is 180713542774.

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 96648861456 + 380596455625 = 310884^2 + 616925^2 .

It is a cyclic number.

It is not a de Polignac number, because 477245317081 - 2¹⁷ = 477245186009 is a prime.

It is a super-2 number, since 2×477245317081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (477245317181) 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 in 3 ways as a sum of consecutive naturals, for example, 18355589106 + ... + 18355589131.

It is an arithmetic number, because the mean of its divisors is an integer number (128489123833).

Almost surely, 2^477245317081 is an apocalyptic number.

It is an amenable number.

477245317081 is a deficient number, since it is larger than the sum of its proper divisors (36711178251).

477245317081 is a wasteful number, since it uses less digits than its factorization.

477245317081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36711178250.

The product of its (nonzero) digits is 1317120, while the sum is 49.

The spelling of 477245317081 in words is "four hundred seventy-seven billion, two hundred forty-five million, three hundred seventeen thousand, eighty-one".