497899819872 has 864 divisors, whose sum is σ = 1839570917184. Its totient is φ = 124346327040.

The previous prime is 497899819831. The next prime is 497899819873. The reversal of 497899819872 is 278918998794.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 497899819791 and 497899819800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497899819873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1334851878 + ... + 1334852250.

It is an arithmetic number, because the mean of its divisors is an integer number (2129133006).

Almost surely, 2^497899819872 is an apocalyptic number.

497899819872 is a gapful number since it is divisible by the number (42) 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 497899819872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (919785458592).

497899819872 is an abundant number, since it is smaller than the sum of its proper divisors (1341671097312).

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

497899819872 is a wasteful number, since it uses less digits than its factorization.

497899819872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 482 counting only the distinct ones).

The product of its digits is 1316818944, while the sum is 81.

The spelling of 497899819872 in words is "four hundred ninety-seven billion, eight hundred ninety-nine million, eight hundred nineteen thousand, eight hundred seventy-two".