494319697920 has 552 divisors, whose sum is σ = 1795430333424. Its totient is φ = 130459631616.

The previous prime is 494319697919. The next prime is 494319697939. The reversal of 494319697920 is 29796913494.

494319697920 is a `hidden beast` number, since 4 + 9 + 431 + 96 + 97 + 9 + 20 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5096079312 + ... + 5096079408.

Almost surely, 2^494319697920 is an apocalyptic number.

494319697920 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 494319697920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (897715166712).

494319697920 is an abundant number, since it is smaller than the sum of its proper divisors (1301110635504).

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

494319697920 is an frugal number, since it uses more digits than its factorization.

494319697920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 26453952, while the sum is 63.

The spelling of 494319697920 in words is "four hundred ninety-four billion, three hundred nineteen million, six hundred ninety-seven thousand, nine hundred twenty".