28195842094 has 64 divisors (see below), whose sum is σ = 51877241856. Its totient is φ = 11231345664.

The previous prime is 28195842049. The next prime is 28195842121. The reversal of 28195842094 is 49024859182.

It is a happy number.

It is a super-2 number, since 2×28195842094² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2722494 + ... + 2732830.

It is an arithmetic number, because the mean of its divisors is an integer number (810581904).

Almost surely, 2^28195842094 is an apocalyptic number.

28195842094 is a deficient number, since it is larger than the sum of its proper divisors (23681399762).

28195842094 is a wasteful number, since it uses less digits than its factorization.

28195842094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10609.

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 28195842094 in words is "twenty-eight billion, one hundred ninety-five million, eight hundred forty-two thousand, ninety-four".