497788887798 has 288 divisors, whose sum is σ = 1220200783200. Its totient is φ = 150189137280.

The previous prime is 497788887797. The next prime is 497788887803. The reversal of 497788887798 is 897788887794.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497788887797) 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 143 ways as a sum of consecutive naturals, for example, 6301125123 + ... + 6301125201.

It is an arithmetic number, because the mean of its divisors is an integer number (4236808275).

Almost surely, 2^497788887798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 497788887798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (610100391600).

497788887798 is an abundant number, since it is smaller than the sum of its proper divisors (722411895402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

497788887798 is a wasteful number, since it uses less digits than its factorization.

497788887798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 197 counting only the distinct ones).

The product of its digits is 25491013632, while the sum is 90.

The spelling of 497788887798 in words is "four hundred ninety-seven billion, seven hundred eighty-eight million, eight hundred eighty-seven thousand, seven hundred ninety-eight".