213890449500036 has 243 divisors, whose sum is σ = 568420681456719. Its totient is φ = 67813172179200.

The previous prime is 213890449500029. The next prime is 213890449500103. The reversal of 213890449500036 is 630005944098312.

The square root of 213890449500036 is 14624994.

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

213890449500036 is a `hidden beast` number, since 2 + 1 + 3 + 8 + 90 + 4 + 49 + 500 + 0 + 3 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15009379149636 + 198881070350400 = 3874194^2 + 14102520^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 165935181280 + ... + 165935182568.

Almost surely, 2^{213890449500036} is an apocalyptic number.

213890449500036 is the 14624994-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213890449500036

213890449500036 is an abundant number, since it is smaller than the sum of its proper divisors (354530231956683).

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

213890449500036 is an equidigital number, since it uses as much as digits as its factorization.

213890449500036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772 (or 1386 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 213890449500036 in words is "two hundred thirteen trillion, eight hundred ninety billion, four hundred forty-nine million, five hundred thousand, thirty-six".