28162875107 has 4 divisors (see below), whose sum is σ = 28267570080. Its totient is φ = 28058180136.

The previous prime is 28162875101. The next prime is 28162875137. The reversal of 28162875107 is 70157826182.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28162875107 - 2⁸ = 28162874851 is a prime.

It is a super-2 number, since 2×28162875107² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28162875101) 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, 52347083 + ... + 52347620.

It is an arithmetic number, because the mean of its divisors is an integer number (7066892520).

Almost surely, 2^28162875107 is an apocalyptic number.

28162875107 is a deficient number, since it is larger than the sum of its proper divisors (104694973).

28162875107 is a wasteful number, since it uses less digits than its factorization.

28162875107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104694972.

The product of its (nonzero) digits is 376320, while the sum is 47.

The spelling of 28162875107 in words is "twenty-eight billion, one hundred sixty-two million, eight hundred seventy-five thousand, one hundred seven".