28396038101 has 2 divisors, whose sum is σ = 28396038102. Its totient is φ = 28396038100.

The previous prime is 28396038091. The next prime is 28396038127. The reversal of 28396038101 is 10183069382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16514820100 + 11881218001 = 128510^2 + 109001^2 .

It is a cyclic number.

It is not a de Polignac number, because 28396038101 - 2¹⁰ = 28396037077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28396038131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14198019050 + 14198019051.

It is an arithmetic number, because the mean of its divisors is an integer number (14198019051).

Almost surely, 2^28396038101 is an apocalyptic number.

It is an amenable number.

28396038101 is a deficient number, since it is larger than the sum of its proper divisors (1).

28396038101 is an equidigital number, since it uses as much as digits as its factorization.

28396038101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 28396038101 in words is "twenty-eight billion, three hundred ninety-six million, thirty-eight thousand, one hundred one".