28741341887 has 4 divisors (see below), whose sum is σ = 28743102696. Its totient is φ = 28739581080.

The previous prime is 28741341883. The next prime is 28741341901. The reversal of 28741341887 is 78814314782.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28741341887 - 2² = 28741341883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28741341883) 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, 855689 + ... + 888642.

It is an arithmetic number, because the mean of its divisors is an integer number (7185775674).

Almost surely, 2^28741341887 is an apocalyptic number.

28741341887 is a deficient number, since it is larger than the sum of its proper divisors (1760809).

28741341887 is a wasteful number, since it uses less digits than its factorization.

28741341887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760808.

The product of its digits is 2408448, while the sum is 53.

The spelling of 28741341887 in words is "twenty-eight billion, seven hundred forty-one million, three hundred forty-one thousand, eight hundred eighty-seven".