213910256650 has 12 divisors (see below), whose sum is σ = 397873077462. Its totient is φ = 85564102640.

The previous prime is 213910256617. The next prime is 213910256657. The reversal of 213910256650 is 56652019312.

213910256650 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 155041425009 + 58868831641 = 393753^2 + 242629^2 .

It is not an unprimeable number, because it can be changed into a prime (213910256657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2139102517 + ... + 2139102616.

Almost surely, 2^213910256650 is an apocalyptic number.

213910256650 is a deficient number, since it is larger than the sum of its proper divisors (183962820812).

213910256650 is a wasteful number, since it uses less digits than its factorization.

213910256650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4278205145 (or 4278205140 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 213910256650 in words is "two hundred thirteen billion, nine hundred ten million, two hundred fifty-six thousand, six hundred fifty".