28940000193194 has 4 divisors (see below), whose sum is σ = 43410000289794. Its totient is φ = 14470000096596.

The previous prime is 28940000193113. The next prime is 28940000193217. The reversal of 28940000193194 is 49139100004982.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 25780447728025 + 3159552465169 = 5077445^2 + 1777513^2 .

It is a super-2 number, since 2×28940000193194² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7235000048297 + ... + 7235000048300.

Almost surely, 2^{28940000193194} is an apocalyptic number.

28940000193194 is a deficient number, since it is larger than the sum of its proper divisors (14470000096600).

28940000193194 is a wasteful number, since it uses less digits than its factorization.

28940000193194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14470000096599.

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 28940000193194 in words is "twenty-eight trillion, nine hundred forty billion, one hundred ninety-three thousand, one hundred ninety-four".