28224351670 has 16 divisors (see below), whose sum is σ = 50893129440. Its totient is φ = 11269897024.

The previous prime is 28224351637. The next prime is 28224351679. The reversal of 28224351670 is 7615342282.

It is a super-2 number, since 2×28224351670² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28224351679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2474482 + ... + 2485861.

It is an arithmetic number, because the mean of its divisors is an integer number (3180820590).

Almost surely, 2^28224351670 is an apocalyptic number.

28224351670 is a deficient number, since it is larger than the sum of its proper divisors (22668777770).

28224351670 is a wasteful number, since it uses less digits than its factorization.

28224351670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4960919.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 28224351670 in words is "twenty-eight billion, two hundred twenty-four million, three hundred fifty-one thousand, six hundred seventy".