213074117644 has 6 divisors (see below), whose sum is σ = 372879705884. Its totient is φ = 106537058820.

The previous prime is 213074117603. The next prime is 213074117647. The reversal of 213074117644 is 446711470312.

It is a super-2 number, since 2×213074117644² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213074117597 and 213074117606.

It is not an unprimeable number, because it can be changed into a prime (213074117647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26634264702 + ... + 26634264709.

Almost surely, 2^213074117644 is an apocalyptic number.

It is an amenable number.

213074117644 is a deficient number, since it is larger than the sum of its proper divisors (159805588240).

213074117644 is a wasteful number, since it uses less digits than its factorization.

213074117644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53268529415 (or 53268529413 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

Adding to 213074117644 its reverse (446711470312), we get a palindrome (659785587956).

The spelling of 213074117644 in words is "two hundred thirteen billion, seventy-four million, one hundred seventeen thousand, six hundred forty-four".