501000244000000 has 126 divisors (see below), whose sum is σ = 1250038329031142. Its totient is φ = 200400096000000.

The previous prime is 501000243999979. The next prime is 501000244000001. The reversal of 501000244000000 is 442000105.

It can be written as a sum of positive squares in 7 ways, for example, as 494646779310336 + 6353464689664 = 22240656^2 + 2520608^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501000244000001) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 58625031 + ... + 66625030.

Almost surely, 2^{501000244000000} is an apocalyptic number.

501000244000000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

501000244000000 is an abundant number, since it is smaller than the sum of its proper divisors (749038085031142).

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

501000244000000 is an frugal number, since it uses more digits than its factorization.

501000244000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125250107 (or 125250068 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

Adding to 501000244000000 its reverse (442000105), we get a palindrome (501000686000105).

The spelling of 501000244000000 in words is "five hundred one trillion, two hundred forty-four million", and thus it is an aban number.