28672625507 has 4 divisors (see below), whose sum is σ = 30181711080. Its totient is φ = 27163539936.

The previous prime is 28672625497. The next prime is 28672625519. The reversal of 28672625507 is 70552627682.

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 28672625507 - 2³² = 24377658211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28672625557) 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 3 ways as a sum of consecutive naturals, for example, 754542758 + ... + 754542795.

It is an arithmetic number, because the mean of its divisors is an integer number (7545427770).

Almost surely, 2^28672625507 is an apocalyptic number.

28672625507 is a deficient number, since it is larger than the sum of its proper divisors (1509085573).

28672625507 is a wasteful number, since it uses less digits than its factorization.

28672625507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509085572.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 28672625507 in words is "twenty-eight billion, six hundred seventy-two million, six hundred twenty-five thousand, five hundred seven".