6398731693228 has 24 divisors (see below), whose sum is σ = 13095078816512. Its totient is φ = 2678538847824.

The previous prime is 6398731693223. The next prime is 6398731693247. The reversal of 6398731693228 is 8223961378936.

It is not an unprimeable number, because it can be changed into a prime (6398731693223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2657279400 + ... + 2657281807.

Almost surely, 2^{6398731693228} is an apocalyptic number.

It is an amenable number.

6398731693228 is an abundant number, since it is smaller than the sum of its proper divisors (6696347123284).

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

6398731693228 is a wasteful number, since it uses less digits than its factorization.

6398731693228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5314561261 (or 5314561259 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 67.

The spelling of 6398731693228 in words is "six trillion, three hundred ninety-eight billion, seven hundred thirty-one million, six hundred ninety-three thousand, two hundred twenty-eight".