494931730000 has 50 divisors (see below), whose sum is σ = 1198279235714. Its totient is φ = 197972688000.

The previous prime is 494931729997. The next prime is 494931730001. The reversal of 494931730000 is 37139494.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 146590968384 + 348340761616 = 382872^2 + 590204^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494931730001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 24736587 + ... + 24756586.

Almost surely, 2^494931730000 is an apocalyptic number.

494931730000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

494931730000 is an abundant number, since it is smaller than the sum of its proper divisors (703347505714).

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

494931730000 is an equidigital number, since it uses as much as digits as its factorization.

494931730000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49493201 (or 49493180 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

Adding to 494931730000 its reverse (37139494), we get a palindrome (494968869494).

The spelling of 494931730000 in words is "four hundred ninety-four billion, nine hundred thirty-one million, seven hundred thirty thousand".