478237503133 has 4 divisors (see below), whose sum is σ = 515025003388. Its totient is φ = 441450002880.

The previous prime is 478237503101. The next prime is 478237503179. The reversal of 478237503133 is 331305732874.

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 280335304089 + 197902199044 = 529467^2 + 444862^2 .

It is a cyclic number.

It is not a de Polignac number, because 478237503133 - 2⁵ = 478237503101 is a prime.

It is a super-2 number, since 2×478237503133² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478237500133) 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, 18393750108 + ... + 18393750133.

It is an arithmetic number, because the mean of its divisors is an integer number (128756250847).

Almost surely, 2^478237503133 is an apocalyptic number.

It is an amenable number.

478237503133 is a deficient number, since it is larger than the sum of its proper divisors (36787500255).

478237503133 is a wasteful number, since it uses less digits than its factorization.

478237503133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36787500254.

The product of its (nonzero) digits is 1270080, while the sum is 46.

The spelling of 478237503133 in words is "four hundred seventy-eight billion, two hundred thirty-seven million, five hundred three thousand, one hundred thirty-three".