28858766029 has 8 divisors (see below), whose sum is σ = 28947353400. Its totient is φ = 28770287616.

The previous prime is 28858765979. The next prime is 28858766071. The reversal of 28858766029 is 92066785882.

It can be written as a sum of positive squares in 4 ways, for example, as 17556100 + 28841209929 = 4190^2 + 169827^2 .

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 28858766029 - 2²¹ = 28856668877 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 (28858706029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520027 + ... + 572839.

It is an arithmetic number, because the mean of its divisors is an integer number (3618419175).

Almost surely, 2^28858766029 is an apocalyptic number.

It is an amenable number.

28858766029 is a deficient number, since it is larger than the sum of its proper divisors (88587371).

28858766029 is a wasteful number, since it uses less digits than its factorization.

28858766029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54479.

The product of its (nonzero) digits is 23224320, while the sum is 61.

The spelling of 28858766029 in words is "twenty-eight billion, eight hundred fifty-eight million, seven hundred sixty-six thousand, twenty-nine".