28101066429 has 4 divisors (see below), whose sum is σ = 37468088576. Its totient is φ = 18734044284.

The previous prime is 28101066377. The next prime is 28101066449. The reversal of 28101066429 is 92466010182.

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 28101066429 - 2¹⁵ = 28101033661 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 (28101066449) 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, 4683511069 + ... + 4683511074.

It is an arithmetic number, because the mean of its divisors is an integer number (9367022144).

Almost surely, 2^28101066429 is an apocalyptic number.

It is an amenable number.

28101066429 is a deficient number, since it is larger than the sum of its proper divisors (9367022147).

28101066429 is an equidigital number, since it uses as much as digits as its factorization.

28101066429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9367022146.

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 28101066429 in words is "twenty-eight billion, one hundred one million, sixty-six thousand, four hundred twenty-nine".