499312097280 has 720 divisors, whose sum is σ = 1902070530360. Its totient is φ = 125257383936.

The previous prime is 499312097227. The next prime is 499312097287. The reversal of 499312097280 is 82790213994.

499312097280 is a `hidden beast` number, since 49 + 9 + 312 + 0 + 9 + 7 + 280 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499312097287) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 239707119 + ... + 239709201.

Almost surely, 2^499312097280 is an apocalyptic number.

499312097280 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 499312097280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (951035265180).

499312097280 is an abundant number, since it is smaller than the sum of its proper divisors (1402758433080).

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

499312097280 is a wasteful number, since it uses less digits than its factorization.

499312097280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156 (or 2110 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 499312097280 in words is "four hundred ninety-nine billion, three hundred twelve million, ninety-seven thousand, two hundred eighty".