28799779429 has 8 divisors (see below), whose sum is σ = 30864159360. Its totient is φ = 26803084176.

The previous prime is 28799779409. The next prime is 28799779451. The reversal of 28799779429 is 92497799782.

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 28799779429 - 2⁷ = 28799779301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28799779409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16920289 + ... + 16921990.

It is an arithmetic number, because the mean of its divisors is an integer number (3858019920).

Almost surely, 2^28799779429 is an apocalyptic number.

It is an amenable number.

28799779429 is a deficient number, since it is larger than the sum of its proper divisors (2064379931).

28799779429 is a wasteful number, since it uses less digits than its factorization.

28799779429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33842339.

The product of its digits is 288054144, while the sum is 73.

The spelling of 28799779429 in words is "twenty-eight billion, seven hundred ninety-nine million, seven hundred seventy-nine thousand, four hundred twenty-nine".