28357577555 has 8 divisors (see below), whose sum is σ = 34948798512. Its totient is φ = 22072925088.

The previous prime is 28357577543. The next prime is 28357577569. The reversal of 28357577555 is 55577575382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28357577555 - 2⁶ = 28357577491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28357577494 and 28357577503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76641917 + ... + 76642286.

It is an arithmetic number, because the mean of its divisors is an integer number (4368599814).

Almost surely, 2^28357577555 is an apocalyptic number.

28357577555 is a deficient number, since it is larger than the sum of its proper divisors (6591220957).

28357577555 is a wasteful number, since it uses less digits than its factorization.

28357577555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153284245.

The product of its digits is 51450000, while the sum is 59.

The spelling of 28357577555 in words is "twenty-eight billion, three hundred fifty-seven million, five hundred seventy-seven thousand, five hundred fifty-five".