497238861843 has 6 divisors (see below), whose sum is σ = 718233911564. Its totient is φ = 331492574556.

The previous prime is 497238861839. The next prime is 497238861853. The reversal of 497238861843 is 348168832794.

497238861843 is a `hidden beast` number, since 4 + 9 + 7 + 2 + 3 + 8 + 8 + 618 + 4 + 3 = 666.

It is not a de Polignac number, because 497238861843 - 2² = 497238861839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497238861803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27624381205 + ... + 27624381222.

Almost surely, 2^497238861843 is an apocalyptic number.

497238861843 is a deficient number, since it is larger than the sum of its proper divisors (220995049721).

497238861843 is a wasteful number, since it uses less digits than its factorization.

497238861843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55248762433 (or 55248762430 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 497238861843 in words is "four hundred ninety-seven billion, two hundred thirty-eight million, eight hundred sixty-one thousand, eight hundred forty-three".