28604774885749 has 8 divisors (see below), whose sum is σ = 30113378100000. Its totient is φ = 27096480546192.

The previous prime is 28604774885737. The next prime is 28604774885779. The reversal of 28604774885749 is 94758847740682.

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 28604774885749 - 2¹⁹ = 28604774361461 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 (28604774885779) 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, 77028559 + ... + 77399020.

It is an arithmetic number, because the mean of its divisors is an integer number (3764172262500).

Almost surely, 2^{28604774885749} is an apocalyptic number.

It is an amenable number.

28604774885749 is a deficient number, since it is larger than the sum of its proper divisors (1508603214251).

28604774885749 is a wasteful number, since it uses less digits than its factorization.

28604774885749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154437347.

The product of its (nonzero) digits is 6069288960, while the sum is 79.

The spelling of 28604774885749 in words is "twenty-eight trillion, six hundred four billion, seven hundred seventy-four million, eight hundred eighty-five thousand, seven hundred forty-nine".