487823228173 has 4 divisors (see below), whose sum is σ = 487825033468. Its totient is φ = 487821422880.

The previous prime is 487823228171. The next prime is 487823228287. The reversal of 487823228173 is 371822328784.

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 37176852969 + 450646375204 = 192813^2 + 671302^2 .

It is a cyclic number.

It is not a de Polignac number, because 487823228173 - 2¹ = 487823228171 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487823228171) 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, 406368 + ... + 1068073.

It is an arithmetic number, because the mean of its divisors is an integer number (121956258367).

Almost surely, 2^487823228173 is an apocalyptic number.

It is an amenable number.

487823228173 is a deficient number, since it is larger than the sum of its proper divisors (1805295).

487823228173 is a wasteful number, since it uses less digits than its factorization.

487823228173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805294.

The product of its digits is 7225344, while the sum is 55.

The spelling of 487823228173 in words is "four hundred eighty-seven billion, eight hundred twenty-three million, two hundred twenty-eight thousand, one hundred seventy-three".