28766541629 has 4 divisors (see below), whose sum is σ = 32876047584. Its totient is φ = 24657035676.

The previous prime is 28766541599. The next prime is 28766541673. The reversal of 28766541629 is 92614566782.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 28766541629 - 2¹² = 28766537533 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 (28766541229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2054752967 + ... + 2054752980.

It is an arithmetic number, because the mean of its divisors is an integer number (8219011896).

Almost surely, 2^28766541629 is an apocalyptic number.

It is an amenable number.

28766541629 is a deficient number, since it is larger than the sum of its proper divisors (4109505955).

28766541629 is an equidigital number, since it uses as much as digits as its factorization.

28766541629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4109505954.

The product of its digits is 8709120, while the sum is 56.

The spelling of 28766541629 in words is "twenty-eight billion, seven hundred sixty-six million, five hundred forty-one thousand, six hundred twenty-nine".