497664121500 has 2304 divisors, whose sum is σ = 2222371307520. Its totient is φ = 94226457600.

The previous prime is 497664121459. The next prime is 497664121511. The reversal of 497664121500 is 5121466794.

497664121500 is a `hidden beast` number, since 4 + 9 + 76 + 64 + 12 + 1 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 4831690449 + ... + 4831690551.

It is an arithmetic number, because the mean of its divisors is an integer number (964570880).

Almost surely, 2^497664121500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 497664121500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1111185653760).

497664121500 is an abundant number, since it is smaller than the sum of its proper divisors (1724707186020).

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

497664121500 is a wasteful number, since it uses less digits than its factorization.

497664121500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 497664121500 in words is "four hundred ninety-seven billion, six hundred sixty-four million, one hundred twenty-one thousand, five hundred".