73143202500 has 225 divisors, whose sum is σ = 239335217121. Its totient is φ = 19472400000.

The previous prime is 73143202481. The next prime is 73143202511. The reversal of 73143202500 is 520234137.

The square root of 73143202500 is 270450.

It is a perfect power (a square), and thus also a powerful number.

73143202500 is a `hidden beast` number, since 7 + 314 + 320 + 25 + 0 + 0 = 666.

It can be written as a sum of positive squares in 7 ways, for example, as 29965687236 + 43177515264 = 173106^2 + 207792^2 .

It is a tau number, because it is divible by the number of its divisors (225).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 121702200 + ... + 121702800.

Almost surely, 2^73143202500 is an apocalyptic number.

73143202500 is the 270450-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73143202500

73143202500 is an abundant number, since it is smaller than the sum of its proper divisors (166192014621).

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

73143202500 is an frugal number, since it uses more digits than its factorization.

73143202500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

Adding to 73143202500 its reverse (520234137), we get a palindrome (73663436637).

The spelling of 73143202500 in words is "seventy-three billion, one hundred forty-three million, two hundred two thousand, five hundred".