28797933979782 has 96 divisors (see below), whose sum is σ = 72719771080320. Its totient is φ = 8143956120960.

The previous prime is 28797933979733. The next prime is 28797933979799.

28797933979782 is a `hidden beast` number, since 2 + 8 + 79 + 79 + 3 + 397 + 9 + 7 + 82 = 666.

28797933979782 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 28797933979692 and 28797933979701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56874463 + ... + 57378570.

It is an arithmetic number, because the mean of its divisors is an integer number (757497615420).

Almost surely, 2^{28797933979782} is an apocalyptic number.

28797933979782 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28797933979782 is an abundant number, since it is smaller than the sum of its proper divisors (43921837100538).

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

28797933979782 is a wasteful number, since it uses less digits than its factorization.

28797933979782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114253138 (or 114253135 counting only the distinct ones).

The product of its digits is 36294822144, while the sum is 90.

The spelling of 28797933979782 in words is "twenty-eight trillion, seven hundred ninety-seven billion, nine hundred thirty-three million, nine hundred seventy-nine thousand, seven hundred eighty-two".