492887475521 has 16 divisors (see below), whose sum is σ = 596478629376. Its totient is φ = 397594599936.

The previous prime is 492887475499. The next prime is 492887475583. The reversal of 492887475521 is 125574788294.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-492887475521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (492887445521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1575845 + ... + 1862541.

It is an arithmetic number, because the mean of its divisors is an integer number (37279914336).

Almost surely, 2^492887475521 is an apocalyptic number.

It is an amenable number.

492887475521 is a deficient number, since it is larger than the sum of its proper divisors (103591153855).

492887475521 is a wasteful number, since it uses less digits than its factorization.

492887475521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301168.

The product of its digits is 45158400, while the sum is 62.

The spelling of 492887475521 in words is "four hundred ninety-two billion, eight hundred eighty-seven million, four hundred seventy-five thousand, five hundred twenty-one".