213185491094468 has 48 divisors (see below), whose sum is σ = 414805583216640. Its totient is φ = 95452421047200.

The previous prime is 213185491094467. The next prime is 213185491094473. The reversal of 213185491094468 is 864490194581312.

It is a super-2 number, since 2×213185491094468² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213185491094461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1052063828 + ... + 1052266443.

It is an arithmetic number, because the mean of its divisors is an integer number (8641782983680).

Almost surely, 2^{213185491094468} is an apocalyptic number.

It is an amenable number.

213185491094468 is a deficient number, since it is larger than the sum of its proper divisors (201620092122172).

213185491094468 is a wasteful number, since it uses less digits than its factorization.

213185491094468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104330368 (or 2104330366 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 65.

The spelling of 213185491094468 in words is "two hundred thirteen trillion, one hundred eighty-five billion, four hundred ninety-one million, ninety-four thousand, four hundred sixty-eight".