8557899775 has 12 divisors (see below), whose sum is σ = 10858583032. Its totient is φ = 6687102240.

The previous prime is 8557899769. The next prime is 8557899859. The reversal of 8557899775 is 5779987558.

It is not a de Polignac number, because 8557899775 - 2³ = 8557899767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3979344 + ... + 3981493.

Almost surely, 2^8557899775 is an apocalyptic number.

8557899775 is a deficient number, since it is larger than the sum of its proper divisors (2300683257).

8557899775 is a wasteful number, since it uses less digits than its factorization.

8557899775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7960890 (or 7960885 counting only the distinct ones).

The product of its digits is 222264000, while the sum is 70.

The square root of 8557899775 is about 92508.9172728770. The cubic root of 8557899775 is about 2045.4509300662.

The spelling of 8557899775 in words is "eight billion, five hundred fifty-seven million, eight hundred ninety-nine thousand, seven hundred seventy-five".