28586693776 has 45 divisors (see below), whose sum is σ = 56762481459. Its totient is φ = 13946741088.

The previous prime is 28586693761. The next prime is 28586693909. The reversal of 28586693776 is 67739668582.

The square root of 28586693776 is 169076.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×28586693776² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 29080581 + ... + 29081563.

Almost surely, 2^28586693776 is an apocalyptic number.

28586693776 is the 169076-th square number.

It is an amenable number.

28586693776 is a deficient number, since it is larger than the sum of its proper divisors (28175787683).

28586693776 is an frugal number, since it uses more digits than its factorization.

28586693776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060 (or 1028 counting only the distinct ones).

The product of its digits is 182891520, while the sum is 67.

The spelling of 28586693776 in words is "twenty-eight billion, five hundred eighty-six million, six hundred ninety-three thousand, seven hundred seventy-six".