6244653642 has 16 divisors (see below), whose sum is σ = 12490208640. Its totient is φ = 2081400992.

The previous prime is 6244653641. The next prime is 6244653647. The reversal of 6244653642 is 2463564426.

It is a junction number, because it is equal to n+sod(n) for n = 6244653594 and 6244653603.

It is not an unprimeable number, because it can be changed into a prime (6244653641) 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 7 ways as a sum of consecutive naturals, for example, 81583 + ... + 138365.

It is an arithmetic number, because the mean of its divisors is an integer number (780638040).

Almost surely, 2^6244653642 is an apocalyptic number.

6244653642 is an abundant number, since it is smaller than the sum of its proper divisors (6245554998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6244653642 is a wasteful number, since it uses less digits than its factorization.

6244653642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75117.

The product of its digits is 829440, while the sum is 42.

The square root of 6244653642 is about 79023.1209330535. The cubic root of 6244653642 is about 1841.4903687845.

The spelling of 6244653642 in words is "six billion, two hundred forty-four million, six hundred fifty-three thousand, six hundred forty-two".