28755790177 has 8 divisors (see below), whose sum is σ = 28807101920. Its totient is φ = 28704507840.

The previous prime is 28755790171. The next prime is 28755790199. The reversal of 28755790177 is 77109755782.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28755790177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28755790171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2947774 + ... + 2957512.

It is an arithmetic number, because the mean of its divisors is an integer number (3600887740).

Almost surely, 2^28755790177 is an apocalyptic number.

It is an amenable number.

28755790177 is a deficient number, since it is larger than the sum of its proper divisors (51311743).

28755790177 is an equidigital number, since it uses as much as digits as its factorization.

28755790177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14703.

The product of its (nonzero) digits is 8643600, while the sum is 58.

The spelling of 28755790177 in words is "twenty-eight billion, seven hundred fifty-five million, seven hundred ninety thousand, one hundred seventy-seven".