28626425555 has 16 divisors (see below), whose sum is σ = 42279029184. Its totient is φ = 18119583360.

The previous prime is 28626425537. The next prime is 28626425557. The reversal of 28626425555 is 55552462682.

It is not a de Polignac number, because 28626425555 - 2⁶ = 28626425491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28626425557) 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 15 ways as a sum of consecutive naturals, for example, 31457156 + ... + 31458065.

It is an arithmetic number, because the mean of its divisors is an integer number (2642439324).

Almost surely, 2^28626425555 is an apocalyptic number.

28626425555 is a deficient number, since it is larger than the sum of its proper divisors (13652603629).

28626425555 is a wasteful number, since it uses less digits than its factorization.

28626425555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62915246.

The product of its digits is 5760000, while the sum is 50.

The spelling of 28626425555 in words is "twenty-eight billion, six hundred twenty-six million, four hundred twenty-five thousand, five hundred fifty-five".