213504500251350 has 576 divisors, whose sum is σ = 719557297385472. Its totient is φ = 44092360800000.

The previous prime is 213504500251333. The next prime is 213504500251369. The reversal of 213504500251350 is 53152005405312.

213504500251350 is a `hidden beast` number, since 2 + 1 + 3 + 5 + 0 + 4 + 50 + 0 + 251 + 350 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 4061542767 + ... + 4061595333.

It is an arithmetic number, because the mean of its divisors is an integer number (1249231419072).

Almost surely, 2^{213504500251350} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213504500251350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359778648692736).

213504500251350 is an abundant number, since it is smaller than the sum of its proper divisors (506052797134122).

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

213504500251350 is a wasteful number, since it uses less digits than its factorization.

213504500251350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53321 (or 53313 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 213504500251350 its reverse (53152005405312), we get a palindrome (266656505656662).

The spelling of 213504500251350 in words is "two hundred thirteen trillion, five hundred four billion, five hundred million, two hundred fifty-one thousand, three hundred fifty".