28338766783382 has 32 divisors (see below), whose sum is σ = 47250476436384. Its totient is φ = 12637413734400.

The previous prime is 28338766783363. The next prime is 28338766783387.

28338766783382 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×28338766783382² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28338766783387) 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, 17820032 + ... + 19345052.

It is an arithmetic number, because the mean of its divisors is an integer number (1476577388637).

Almost surely, 2^{28338766783382} is an apocalyptic number.

28338766783382 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28338766783382 is a deficient number, since it is larger than the sum of its proper divisors (18911709653002).

28338766783382 is a wasteful number, since it uses less digits than its factorization.

28338766783382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541024.

The product of its digits is 2341011456, while the sum is 74.

The spelling of 28338766783382 in words is "twenty-eight trillion, three hundred thirty-eight billion, seven hundred sixty-six million, seven hundred eighty-three thousand, three hundred eighty-two".