28166769379 has 8 divisors (see below), whose sum is σ = 34084158048. Its totient is φ = 22722771840.

The previous prime is 28166769377. The next prime is 28166769391. The reversal of 28166769379 is 97396766182.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28166769379 - 2¹ = 28166769377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28166769379.

It is not an unprimeable number, because it can be changed into a prime (28166769373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118347652 + ... + 118347889.

It is an arithmetic number, because the mean of its divisors is an integer number (4260519756).

Almost surely, 2^28166769379 is an apocalyptic number.

28166769379 is a deficient number, since it is larger than the sum of its proper divisors (5917388669).

28166769379 is a wasteful number, since it uses less digits than its factorization.

28166769379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236695565.

The product of its digits is 41150592, while the sum is 64.

The spelling of 28166769379 in words is "twenty-eight billion, one hundred sixty-six million, seven hundred sixty-nine thousand, three hundred seventy-nine".