28056106461 has 8 divisors (see below), whose sum is σ = 37409745184. Its totient is φ = 18703269360.

The previous prime is 28056106433. The next prime is 28056106487. The reversal of 28056106461 is 16460165082.

It is a happy number.

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

It is not a de Polignac number, because 28056106461 - 2⁹ = 28056105949 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 (28056106061) 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 7 ways as a sum of consecutive naturals, for example, 113335 + ... + 262596.

It is an arithmetic number, because the mean of its divisors is an integer number (4676218148).

Almost surely, 2^28056106461 is an apocalyptic number.

It is an amenable number.

28056106461 is a deficient number, since it is larger than the sum of its proper divisors (9353638723).

28056106461 is a wasteful number, since it uses less digits than its factorization.

28056106461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400811.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 28056106461 in words is "twenty-eight billion, fifty-six million, one hundred six thousand, four hundred sixty-one".