7828638848231 has 16 divisors (see below), whose sum is σ = 8662321289664. Its totient is φ = 7037366628864.

The previous prime is 7828638848203. The next prime is 7828638848249. The reversal of 7828638848231 is 1328488368287.

It is a cyclic number.

It is not a de Polignac number, because 7828638848231 - 2¹⁰ = 7828638847207 is a prime.

It is a super-2 number, since 2×7828638848231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7828638848281) 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, 14522660 + ... + 15052073.

It is an arithmetic number, because the mean of its divisors is an integer number (541395080604).

Almost surely, 2^{7828638848231} is an apocalyptic number.

7828638848231 is a deficient number, since it is larger than the sum of its proper divisors (833682441433).

7828638848231 is a wasteful number, since it uses less digits than its factorization.

7828638848231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29575450.

The product of its digits is 198180864, while the sum is 68.

The spelling of 7828638848231 in words is "seven trillion, eight hundred twenty-eight billion, six hundred thirty-eight million, eight hundred forty-eight thousand, two hundred thirty-one".