28191829002901 has 2 divisors, whose sum is σ = 28191829002902. Its totient is φ = 28191829002900.

The previous prime is 28191829002877. The next prime is 28191829002923. The reversal of 28191829002901 is 10920092819182.

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., 20554753050225 + 7637075952676 = 4533735^2 + 2763526^2 .

It is a cyclic number.

It is not a de Polignac number, because 28191829002901 - 2¹⁹ = 28191828478613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28191829002971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14095914501450 + 14095914501451.

It is an arithmetic number, because the mean of its divisors is an integer number (14095914501451).

Almost surely, 2^{28191829002901} is an apocalyptic number.

It is an amenable number.

28191829002901 is a deficient number, since it is larger than the sum of its proper divisors (1).

28191829002901 is an equidigital number, since it uses as much as digits as its factorization.

28191829002901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 52.

The spelling of 28191829002901 in words is "twenty-eight trillion, one hundred ninety-one billion, eight hundred twenty-nine million, two thousand, nine hundred one".