28841247643 has 8 divisors (see below), whose sum is σ = 32886852768. Its totient is φ = 25056649344.

The previous prime is 28841247587. The next prime is 28841247653. The reversal of 28841247643 is 34674214882.

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

It is a cyclic number.

It is not a de Polignac number, because 28841247643 - 2¹³ = 28841239451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28841247653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65251471 + ... + 65251912.

It is an arithmetic number, because the mean of its divisors is an integer number (4110856596).

Almost surely, 2^28841247643 is an apocalyptic number.

28841247643 is a deficient number, since it is larger than the sum of its proper divisors (4045605125).

28841247643 is a wasteful number, since it uses less digits than its factorization.

28841247643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130503413.

The product of its digits is 2064384, while the sum is 49.

The spelling of 28841247643 in words is "twenty-eight billion, eight hundred forty-one million, two hundred forty-seven thousand, six hundred forty-three".