28908827252101 has 2 divisors, whose sum is σ = 28908827252102. Its totient is φ = 28908827252100.

The previous prime is 28908827252021. The next prime is 28908827252117. The reversal of 28908827252101 is 10125272880982.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21034826467876 + 7874000784225 = 4586374^2 + 2806065^2 .

It is a cyclic number.

It is not a de Polignac number, because 28908827252101 - 2¹³ = 28908827243909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28908827253101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14454413626050 + 14454413626051.

It is an arithmetic number, because the mean of its divisors is an integer number (14454413626051).

Almost surely, 2^{28908827252101} is an apocalyptic number.

It is an amenable number.

28908827252101 is a deficient number, since it is larger than the sum of its proper divisors (1).

28908827252101 is an equidigital number, since it uses as much as digits as its factorization.

28908827252101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2580480, while the sum is 55.

The spelling of 28908827252101 in words is "twenty-eight trillion, nine hundred eight billion, eight hundred twenty-seven million, two hundred fifty-two thousand, one hundred one".