28343669194250 has 32 divisors (see below), whose sum is σ = 54888981460560. Its totient is φ = 10946520513600.

The previous prime is 28343669194229. The next prime is 28343669194259. The reversal of 28343669194250 is 5249196634382.

It can be written as a sum of positive squares in 8 ways, for example, as 9904429441 + 28333764764809 = 99521^2 + 5322947^2 .

It is not an unprimeable number, because it can be changed into a prime (28343669194259) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 1954728557 + ... + 1954743056.

Almost surely, 2^{28343669194250} is an apocalyptic number.

28343669194250 is a deficient number, since it is larger than the sum of its proper divisors (26545312266310).

28343669194250 is a wasteful number, since it uses less digits than its factorization.

28343669194250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3909471659 (or 3909471649 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 62.

The spelling of 28343669194250 in words is "twenty-eight trillion, three hundred forty-three billion, six hundred sixty-nine million, one hundred ninety-four thousand, two hundred fifty".