28670295727 has 8 divisors (see below), whose sum is σ = 30258063360. Its totient is φ = 27090408600.

The previous prime is 28670295713. The next prime is 28670295733. The reversal of 28670295727 is 72759207682.

It is a happy number.

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-28670295727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28670295737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1962649 + ... + 1977202.

It is an arithmetic number, because the mean of its divisors is an integer number (3782257920).

Almost surely, 2^28670295727 is an apocalyptic number.

28670295727 is a deficient number, since it is larger than the sum of its proper divisors (1587767633).

28670295727 is a wasteful number, since it uses less digits than its factorization.

28670295727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3940253.

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 28670295727 in words is "twenty-eight billion, six hundred seventy million, two hundred ninety-five thousand, seven hundred twenty-seven".