475851558947 has 4 divisors (see below), whose sum is σ = 476331733056. Its totient is φ = 475371384840.

The previous prime is 475851558913. The next prime is 475851558989. The reversal of 475851558947 is 749855158574.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 749855158574 = 2 ⋅374927579287.

It is a cyclic number.

It is not a de Polignac number, because 475851558947 - 2¹⁴ = 475851542563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475851558547) 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, 240085568 + ... + 240087549.

It is an arithmetic number, because the mean of its divisors is an integer number (119082933264).

Almost surely, 2^475851558947 is an apocalyptic number.

475851558947 is a deficient number, since it is larger than the sum of its proper divisors (480174109).

475851558947 is an equidigital number, since it uses as much as digits as its factorization.

475851558947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480174108.

The product of its digits is 282240000, while the sum is 68.

The spelling of 475851558947 in words is "four hundred seventy-five billion, eight hundred fifty-one million, five hundred fifty-eight thousand, nine hundred forty-seven".