28736734042 has 8 divisors (see below), whose sum is σ = 43434148032. Its totient is φ = 14258684700.

The previous prime is 28736734021. The next prime is 28736734049. The reversal of 28736734042 is 24043763782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28736733983 and 28736734001.

It is not an unprimeable number, because it can be changed into a prime (28736734049) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 54840834 + ... + 54841357.

It is an arithmetic number, because the mean of its divisors is an integer number (5429268504).

Almost surely, 2^28736734042 is an apocalyptic number.

28736734042 is a deficient number, since it is larger than the sum of its proper divisors (14697413990).

28736734042 is a wasteful number, since it uses less digits than its factorization.

28736734042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109682324.

The product of its (nonzero) digits is 1354752, while the sum is 46.

The spelling of 28736734042 in words is "twenty-eight billion, seven hundred thirty-six million, seven hundred thirty-four thousand, forty-two".