497138997848 has 32 divisors (see below), whose sum is σ = 935705466000. Its totient is φ = 247617935232.

The previous prime is 497138997821. The next prime is 497138997917. The reversal of 497138997848 is 848799831794.

It is a super-2 number, since 2×497138997848² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (77) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11277386 + ... + 11321382.

Almost surely, 2^497138997848 is an apocalyptic number.

It is an amenable number.

497138997848 is a deficient number, since it is larger than the sum of its proper divisors (438566468152).

497138997848 is a wasteful number, since it uses less digits than its factorization.

497138997848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49379 (or 49375 counting only the distinct ones).

The product of its digits is 877879296, while the sum is 77.

The spelling of 497138997848 in words is "four hundred ninety-seven billion, one hundred thirty-eight million, nine hundred ninety-seven thousand, eight hundred forty-eight".