215012645350 has 24 divisors (see below), whose sum is σ = 413713989360. Its totient is φ = 83039365920.

The previous prime is 215012645329. The next prime is 215012645357. The reversal of 215012645350 is 53546210512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215012645357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74140842 + ... + 74143741.

It is an arithmetic number, because the mean of its divisors is an integer number (17238082890).

Almost surely, 2^215012645350 is an apocalyptic number.

215012645350 is a deficient number, since it is larger than the sum of its proper divisors (198701344010).

215012645350 is a wasteful number, since it uses less digits than its factorization.

215012645350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148284624 (or 148284619 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 215012645350 its reverse (53546210512), we get a palindrome (268558855862).

The spelling of 215012645350 in words is "two hundred fifteen billion, twelve million, six hundred forty-five thousand, three hundred fifty".