497225785575456 has 720 divisors, whose sum is σ = 1757617656867072. Its totient is φ = 137351052518400.

The previous prime is 497225785575361. The next prime is 497225785575557. The reversal of 497225785575456 is 654575587522794.

497225785575456 is a `hidden beast` number, since 4 + 9 + 7 + 2 + 2 + 5 + 7 + 8 + 557 + 5 + 4 + 56 = 666.

It is a super-2 number, since 2×497225785575456² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 4177360615 + ... + 4177479641.

Almost surely, 2^{497225785575456} 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 497225785575456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (878808828433536).

497225785575456 is an abundant number, since it is smaller than the sum of its proper divisors (1260391871291616).

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

497225785575456 is a wasteful number, since it uses less digits than its factorization.

497225785575456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120155 (or 120131 counting only the distinct ones).

The product of its digits is 29635200000, while the sum is 81.

The spelling of 497225785575456 in words is "four hundred ninety-seven trillion, two hundred twenty-five billion, seven hundred eighty-five million, five hundred seventy-five thousand, four hundred fifty-six".