213481857404 has 12 divisors (see below), whose sum is σ = 378855127728. Its totient is φ = 105237535200.

The previous prime is 213481857403. The next prime is 213481857419. The reversal of 213481857404 is 404758184312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213481857403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375848057 + ... + 375848624.

It is an arithmetic number, because the mean of its divisors is an integer number (31571260644).

Almost surely, 2^213481857404 is an apocalyptic number.

It is an amenable number.

213481857404 is a deficient number, since it is larger than the sum of its proper divisors (165373270324).

213481857404 is a wasteful number, since it uses less digits than its factorization.

213481857404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751696756 (or 751696754 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 47.

The spelling of 213481857404 in words is "two hundred thirteen billion, four hundred eighty-one million, eight hundred fifty-seven thousand, four hundred four".