28056106455 has 32 divisors (see below), whose sum is σ = 48650798784. Its totient is φ = 13724246016.

The previous prime is 28056106433. The next prime is 28056106487. The reversal of 28056106455 is 55460165082.

It is not a de Polignac number, because 28056106455 - 2⁶ = 28056106391 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 427594 + ... + 488823.

It is an arithmetic number, because the mean of its divisors is an integer number (1520337462).

Almost surely, 2^28056106455 is an apocalyptic number.

28056106455 is a deficient number, since it is larger than the sum of its proper divisors (20594692329).

28056106455 is a wasteful number, since it uses less digits than its factorization.

28056106455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916595.

The product of its (nonzero) digits is 288000, while the sum is 42.

It can be divided in two parts, 2805 and 6106455, that added together give a triangular number (6109260 = T₃₄₉₅).

The spelling of 28056106455 in words is "twenty-eight billion, fifty-six million, one hundred six thousand, four hundred fifty-five".