497467897920 has 1344 divisors, whose sum is σ = 2177565327360. Its totient is φ = 106351128576.

The previous prime is 497467897919. The next prime is 497467897931. The reversal of 497467897920 is 29798764794.

497467897920 is a `hidden beast` number, since 4 + 97 + 467 + 8 + 9 + 79 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 457651617 + ... + 457652703.

Almost surely, 2^497467897920 is an apocalyptic number.

497467897920 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 497467897920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1088782663680).

497467897920 is an abundant number, since it is smaller than the sum of its proper divisors (1680097429440).

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

497467897920 is a wasteful number, since it uses less digits than its factorization.

497467897920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 384072192, while the sum is 72.

The spelling of 497467897920 in words is "four hundred ninety-seven billion, four hundred sixty-seven million, eight hundred ninety-seven thousand, nine hundred twenty".