497497489920 has 800 divisors, whose sum is σ = 1841653376640. Its totient is φ = 128277872640.

The previous prime is 497497489913. The next prime is 497497489933. The reversal of 497497489920 is 29984794794.

497497489920 is a `hidden beast` number, since 4 + 9 + 7 + 497 + 48 + 9 + 92 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1385786701 + ... + 1385787059.

Almost surely, 2^497497489920 is an apocalyptic number.

497497489920 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 497497489920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (920826688320).

497497489920 is an abundant number, since it is smaller than the sum of its proper divisors (1344155886720).

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

497497489920 is a wasteful number, since it uses less digits than its factorization.

497497489920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 329204736, while the sum is 72.

The spelling of 497497489920 in words is "four hundred ninety-seven billion, four hundred ninety-seven million, four hundred eighty-nine thousand, nine hundred twenty".