28508078395 has 8 divisors (see below), whose sum is σ = 34214097456. Its totient is φ = 22803527136.

The previous prime is 28508078393. The next prime is 28508078407. The reversal of 28508078395 is 59387080582.

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 28508078395 - 2¹ = 28508078393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28508078393) 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, 323757 + ... + 402286.

It is an arithmetic number, because the mean of its divisors is an integer number (4276762182).

Almost surely, 2^28508078395 is an apocalyptic number.

28508078395 is a deficient number, since it is larger than the sum of its proper divisors (5706019061).

28508078395 is an equidigital number, since it uses as much as digits as its factorization.

28508078395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733901.

The product of its (nonzero) digits is 4838400, while the sum is 55.

The spelling of 28508078395 in words is "twenty-eight billion, five hundred eight million, seventy-eight thousand, three hundred ninety-five".