28601811675 has 18 divisors (see below), whose sum is σ = 51229023092. Its totient is φ = 15254299440.

The previous prime is 28601811659. The next prime is 28601811677. The reversal of 28601811675 is 57611810682.

28601811675 is a `hidden beast` number, since 28 + 601 + 8 + 1 + 16 + 7 + 5 = 666.

It is not a de Polignac number, because 28601811675 - 2⁴ = 28601811659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28601811675.

It is not an unprimeable number, because it can be changed into a prime (28601811677) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 63559357 + ... + 63559806.

Almost surely, 2^28601811675 is an apocalyptic number.

28601811675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28601811675 is a deficient number, since it is larger than the sum of its proper divisors (22627211417).

28601811675 is a wasteful number, since it uses less digits than its factorization.

28601811675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127119179 (or 127119171 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 28601811675 in words is "twenty-eight billion, six hundred one million, eight hundred eleven thousand, six hundred seventy-five".