497547866520 has 512 divisors, whose sum is σ = 1787870361600. Its totient is φ = 122624409600.

The previous prime is 497547866509. The next prime is 497547866539. The reversal of 497547866520 is 25668745794.

497547866520 is a `hidden beast` number, since 4 + 9 + 7 + 5 + 47 + 8 + 66 + 520 = 666.

497547866520 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 776205400 + ... + 776206040.

It is an arithmetic number, because the mean of its divisors is an integer number (3491934300).

Almost surely, 2^497547866520 is an apocalyptic number.

497547866520 is a gapful number since it is divisible by the number (40) 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 497547866520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (893935180800).

497547866520 is an abundant number, since it is smaller than the sum of its proper divisors (1290322495080).

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

497547866520 is a wasteful number, since it uses less digits than its factorization.

497547866520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376 (or 1366 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 63.

The spelling of 497547866520 in words is "four hundred ninety-seven billion, five hundred forty-seven million, eight hundred sixty-six thousand, five hundred twenty".