28294394058 has 96 divisors (see below), whose sum is σ = 73295629056. Its totient is φ = 7712838144.

The previous prime is 28294394017. The next prime is 28294394083. The reversal of 28294394058 is 85049349282.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28294393995 and 28294394013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1138210 + ... + 1162802.

It is an arithmetic number, because the mean of its divisors is an integer number (763496136).

Almost surely, 2^28294394058 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28294394058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36647814528).

28294394058 is an abundant number, since it is smaller than the sum of its proper divisors (45001234998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28294394058 is a wasteful number, since it uses less digits than its factorization.

28294394058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25028 (or 25025 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 28294394058 in words is "twenty-eight billion, two hundred ninety-four million, three hundred ninety-four thousand, fifty-eight".