6213646036 has 12 divisors (see below), whose sum is σ = 11710333012. Its totient is φ = 2867836608.

The previous prime is 6213646009. The next prime is 6213646037. The reversal of 6213646036 is 6306463126.

It can be written as a sum of positive squares in 2 ways, for example, as 2519437636 + 3694208400 = 50194^2 + 60780^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6213645986 and 6213646004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6213646037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59746545 + ... + 59746648.

Almost surely, 2^6213646036 is an apocalyptic number.

It is an amenable number.

6213646036 is a deficient number, since it is larger than the sum of its proper divisors (5496686976).

6213646036 is a wasteful number, since it uses less digits than its factorization.

6213646036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119493210 (or 119493208 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 6213646036 is about 78826.6835278512. The cubic root of 6213646036 is about 1838.4373583027.

The spelling of 6213646036 in words is "six billion, two hundred thirteen million, six hundred forty-six thousand, thirty-six".