28234880101 has 2 divisors, whose sum is σ = 28234880102. Its totient is φ = 28234880100.

The previous prime is 28234880081. The next prime is 28234880123. The reversal of 28234880101 is 10108843282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27129384100 + 1105496001 = 164710^2 + 33249^2 .

It is a cyclic number.

It is not a de Polignac number, because 28234880101 - 2²³ = 28226491493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28234880801) 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 as a sum of consecutive naturals, namely, 14117440050 + 14117440051.

It is an arithmetic number, because the mean of its divisors is an integer number (14117440051).

Almost surely, 2^28234880101 is an apocalyptic number.

It is an amenable number.

28234880101 is a deficient number, since it is larger than the sum of its proper divisors (1).

28234880101 is an equidigital number, since it uses as much as digits as its factorization.

28234880101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24576, while the sum is 37.

The spelling of 28234880101 in words is "twenty-eight billion, two hundred thirty-four million, eight hundred eighty thousand, one hundred one".