7828338287 has 16 divisors (see below), whose sum is σ = 9773996544. Its totient is φ = 6091260000.

The previous prime is 7828338281. The next prime is 7828338299.

7828338287 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7828338287 - 2⁸ = 7828338031 is a prime.

It is a super-2 number, since 2×7828338287² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7828338281) 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, 18539 + ... + 126492.

It is an arithmetic number, because the mean of its divisors is an integer number (610874784).

Almost surely, 2^7828338287 is an apocalyptic number.

7828338287 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

7828338287 is a deficient number, since it is larger than the sum of its proper divisors (1945658257).

7828338287 is a wasteful number, since it uses less digits than its factorization.

7828338287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145750.

The product of its digits is 7225344, while the sum is 56.

The square root of 7828338287 is about 88477.8971664675. The cubic root of 7828338287 is about 1985.5913012331.

The spelling of 7828338287 in words is "seven billion, eight hundred twenty-eight million, three hundred thirty-eight thousand, two hundred eighty-seven".