28192277378 has 8 divisors (see below), whose sum is σ = 42320432460. Its totient is φ = 14085466560.

The previous prime is 28192277371. The next prime is 28192277389. The reversal of 28192277378 is 87377229182.

It can be written as a sum of positive squares in 2 ways, for example, as 27766556689 + 425720689 = 166633^2 + 20633^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28192277371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5332763 + ... + 5338046.

Almost surely, 2^28192277378 is an apocalyptic number.

28192277378 is a deficient number, since it is larger than the sum of its proper divisors (14128155082).

28192277378 is a wasteful number, since it uses less digits than its factorization.

28192277378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10672132.

The product of its digits is 4741632, while the sum is 56.

The spelling of 28192277378 in words is "twenty-eight billion, one hundred ninety-two million, two hundred seventy-seven thousand, three hundred seventy-eight".