28056122445 has 32 divisors (see below), whose sum is σ = 48352114944. Its totient is φ = 13809600000.

The previous prime is 28056122443. The next prime is 28056122473. The reversal of 28056122445 is 54422165082.

It is not a de Polignac number, because 28056122445 - 2¹ = 28056122443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28056122443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1354920 + ... + 1375470.

It is an arithmetic number, because the mean of its divisors is an integer number (1511003592).

Almost surely, 2^28056122445 is an apocalyptic number.

It is an amenable number.

28056122445 is a deficient number, since it is larger than the sum of its proper divisors (20295992499).

28056122445 is a wasteful number, since it uses less digits than its factorization.

28056122445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27573.

The product of its (nonzero) digits is 153600, while the sum is 39.

The spelling of 28056122445 in words is "twenty-eight billion, fifty-six million, one hundred twenty-two thousand, four hundred forty-five".