213730964194 has 32 divisors (see below), whose sum is σ = 353715981696. Its totient is φ = 96048529920.

The previous prime is 213730964189. The next prime is 213730964243. The reversal of 213730964194 is 491469037312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2011792 + ... + 2115364.

It is an arithmetic number, because the mean of its divisors is an integer number (11053624428).

Almost surely, 2^213730964194 is an apocalyptic number.

213730964194 is a deficient number, since it is larger than the sum of its proper divisors (139985017502).

213730964194 is a wasteful number, since it uses less digits than its factorization.

213730964194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104650.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 213730964194 in words is "two hundred thirteen billion, seven hundred thirty million, nine hundred sixty-four thousand, one hundred ninety-four".