28552898424 has 32 divisors (see below), whose sum is σ = 71581104000. Its totient is φ = 9491118432.

The previous prime is 28552898411. The next prime is 28552898431. The reversal of 28552898424 is 42489825582.

It is a happy number.

It is a super-2 number, since 2×28552898424² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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, 1648354 + ... + 1665585.

It is an arithmetic number, because the mean of its divisors is an integer number (2236909500).

Almost surely, 2^28552898424 is an apocalyptic number.

28552898424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28552898424 is an abundant number, since it is smaller than the sum of its proper divisors (43028205576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28552898424 is a wasteful number, since it uses less digits than its factorization.

28552898424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314307 (or 3314303 counting only the distinct ones).

The product of its digits is 14745600, while the sum is 57.

The spelling of 28552898424 in words is "twenty-eight billion, five hundred fifty-two million, eight hundred ninety-eight thousand, four hundred twenty-four".