28420964498 has 16 divisors (see below), whose sum is σ = 43086180984. Its totient is φ = 14059008000.

The previous prime is 28420964491. The next prime is 28420964557. The reversal of 28420964498 is 89446902482.

It can be written as a sum of positive squares in 4 ways, for example, as 22908941449 + 5512023049 = 151357^2 + 74243^2 .

It is not an unprimeable number, because it can be changed into a prime (28420964491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557786 + ... + 606602.

Almost surely, 2^28420964498 is an apocalyptic number.

28420964498 is a deficient number, since it is larger than the sum of its proper divisors (14665216486).

28420964498 is a wasteful number, since it uses less digits than its factorization.

28420964498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51917.

The product of its (nonzero) digits is 7962624, while the sum is 56.

The spelling of 28420964498 in words is "twenty-eight billion, four hundred twenty million, nine hundred sixty-four thousand, four hundred ninety-eight".