497388778462968 has 128 divisors (see below), whose sum is σ = 1473311458321920. Its totient is φ = 136974534359040.

The previous prime is 497388778462943. The next prime is 497388778462969. The reversal of 497388778462968 is 869264877883794.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497388778462969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 434433805 + ... + 435577212.

It is an arithmetic number, because the mean of its divisors is an integer number (11510245768140).

Almost surely, 2^{497388778462968} is an apocalyptic number.

It is an amenable number.

497388778462968 is an abundant number, since it is smaller than the sum of its proper divisors (975922679858952).

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

497388778462968 is a wasteful number, since it uses less digits than its factorization.

497388778462968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870011157 (or 870011153 counting only the distinct ones).

The product of its digits is 393289924608, while the sum is 96.

The spelling of 497388778462968 in words is "four hundred ninety-seven trillion, three hundred eighty-eight billion, seven hundred seventy-eight million, four hundred sixty-two thousand, nine hundred sixty-eight".