28805771068 has 12 divisors (see below), whose sum is σ = 50427763792. Its totient is φ = 14397838560.

The previous prime is 28805771017. The next prime is 28805771069. The reversal of 28805771068 is 86017750882.

It is a happy number.

It is a super-3 number, since 3×28805771068³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28805771069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1248888 + ... + 1271743.

Almost surely, 2^28805771068 is an apocalyptic number.

It is an amenable number.

28805771068 is a deficient number, since it is larger than the sum of its proper divisors (21621992724).

28805771068 is a wasteful number, since it uses less digits than its factorization.

28805771068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523492 (or 2523490 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 52.

The spelling of 28805771068 in words is "twenty-eight billion, eight hundred five million, seven hundred seventy-one thousand, sixty-eight".