54428588442 has 40 divisors (see below), whose sum is σ = 121978894356. Its totient is φ = 18140105088.

The previous prime is 54428588437. The next prime is 54428588449. The reversal of 54428588442 is 24488582445.

54428588442 is a `hidden beast` number, since 5 + 4 + 42 + 85 + 88 + 442 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 40313009961 + 14115578481 = 200781^2 + 118809^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (54428588449) 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 19 ways as a sum of consecutive naturals, for example, 1234978 + ... + 1278290.

Almost surely, 2^54428588442 is an apocalyptic number.

54428588442 is an abundant number, since it is smaller than the sum of its proper divisors (67550305914).

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

54428588442 is a wasteful number, since it uses less digits than its factorization.

54428588442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51084 (or 51075 counting only the distinct ones).

The product of its digits is 13107200, while the sum is 54.

The spelling of 54428588442 in words is "fifty-four billion, four hundred twenty-eight million, five hundred eighty-eight thousand, four hundred forty-two".