28554447042 has 48 divisors (see below), whose sum is σ = 67543811712. Its totient is φ = 8646262560.

The previous prime is 28554447041. The next prime is 28554447043. The reversal of 28554447042 is 24074445582.

28554447042 is a `hidden beast` number, since 28 + 5 + 544 + 47 + 0 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (28554447041) and next prime (28554447043).

It is not an unprimeable number, because it can be changed into a prime (28554447041) 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 23 ways as a sum of consecutive naturals, for example, 208408 + ... + 317084.

It is an arithmetic number, because the mean of its divisors is an integer number (1407162744).

Almost surely, 2^28554447042 is an apocalyptic number.

28554447042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28554447042 is an abundant number, since it is smaller than the sum of its proper divisors (38989364670).

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

28554447042 is a wasteful number, since it uses less digits than its factorization.

28554447042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110023 (or 110020 counting only the distinct ones).

The product of its (nonzero) digits is 1433600, while the sum is 45.

The spelling of 28554447042 in words is "twenty-eight billion, five hundred fifty-four million, four hundred forty-seven thousand, forty-two".