497490981057168 has 480 divisors, whose sum is σ = 1621913057170560. Its totient is φ = 130487895982080.

The previous prime is 497490981057149. The next prime is 497490981057179. The reversal of 497490981057168 is 861750189094794.

It is a junction number, because it is equal to n+sod(n) for n = 497490981057093 and 497490981057102.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8185214203 + ... + 8185274981.

It is an arithmetic number, because the mean of its divisors is an integer number (3378985535772).

Almost surely, 2^{497490981057168} is an apocalyptic number.

497490981057168 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 497490981057168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (810956528585280).

497490981057168 is an abundant number, since it is smaller than the sum of its proper divisors (1124422076113392).

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

497490981057168 is a wasteful number, since it uses less digits than its factorization.

497490981057168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65855 (or 65842 counting only the distinct ones).

The product of its (nonzero) digits is 1097349120, while the sum is 78.

The spelling of 497490981057168 in words is "four hundred ninety-seven trillion, four hundred ninety billion, nine hundred eighty-one million, fifty-seven thousand, one hundred sixty-eight".