28227450445354 has 4 divisors (see below), whose sum is σ = 42341175668034. Its totient is φ = 14113725222676.

The previous prime is 28227450445349. The next prime is 28227450445357. The reversal of 28227450445354 is 45354405472282.

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., 28070107323129 + 157343122225 = 5298123^2 + 396665^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28227450445295 and 28227450445304.

It is not an unprimeable number, because it can be changed into a prime (28227450445357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7056862611337 + ... + 7056862611340.

Almost surely, 2^{28227450445354} is an apocalyptic number.

28227450445354 is a deficient number, since it is larger than the sum of its proper divisors (14113725222680).

28227450445354 is a wasteful number, since it uses less digits than its factorization.

28227450445354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14113725222679.

The product of its (nonzero) digits is 43008000, while the sum is 55.

It can be divided in two parts, 282274 and 50445354, that added together give a triangular number (50727628 = T₁₀₀₇₂).

The spelling of 28227450445354 in words is "twenty-eight trillion, two hundred twenty-seven billion, four hundred fifty million, four hundred forty-five thousand, three hundred fifty-four".