6638261230 has 32 divisors (see below), whose sum is σ = 12598300800. Its totient is φ = 2511443232.

The previous prime is 6638261221. The next prime is 6638261237. The reversal of 6638261230 is 321628366.

It is a super-2 number, since 2×6638261230² = 88133024315442225800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6638261230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6638261237) 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, 89389 + ... + 145831.

It is an arithmetic number, because the mean of its divisors is an integer number (393696900).

Almost surely, 2^6638261230 is an apocalyptic number.

6638261230 is a deficient number, since it is larger than the sum of its proper divisors (5960039570).

6638261230 is a wasteful number, since it uses less digits than its factorization.

6638261230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57088.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 6638261230 is about 81475.5253435042. The cubic root of 6638261230 is about 1879.3951983546.

Adding to 6638261230 its reverse (321628366), we get a palindrome (6959889596).

The spelling of 6638261230 in words is "six billion, six hundred thirty-eight million, two hundred sixty-one thousand, two hundred thirty".