498199121280 has 768 divisors, whose sum is σ = 2101789347840. Its totient is φ = 106258268160.

The previous prime is 498199121219. The next prime is 498199121293. The reversal of 498199121280 is 82121991894.

498199121280 is a `hidden beast` number, since 498 + 1 + 9 + 9 + 121 + 28 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 38015209 + ... + 38028311.

It is an arithmetic number, because the mean of its divisors is an integer number (2736704880).

Almost surely, 2^498199121280 is an apocalyptic number.

498199121280 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 498199121280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1050894673920).

498199121280 is an abundant number, since it is smaller than the sum of its proper divisors (1603590226560).

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

498199121280 is a wasteful number, since it uses less digits than its factorization.

498199121280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13199 (or 13184 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 54.

The spelling of 498199121280 in words is "four hundred ninety-eight billion, one hundred ninety-nine million, one hundred twenty-one thousand, two hundred eighty".