28842392401 has 2 divisors, whose sum is σ = 28842392402. Its totient is φ = 28842392400.

The previous prime is 28842392393. The next prime is 28842392417. The reversal of 28842392401 is 10429324882.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27502905600 + 1339486801 = 165840^2 + 36599^2 .

It is a cyclic number.

It is not a de Polignac number, because 28842392401 - 2³ = 28842392393 is a prime.

It is not a weakly prime, because it can be changed into another prime (28842392461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14421196200 + 14421196201.

It is an arithmetic number, because the mean of its divisors is an integer number (14421196201).

Almost surely, 2^28842392401 is an apocalyptic number.

It is an amenable number.

28842392401 is a deficient number, since it is larger than the sum of its proper divisors (1).

28842392401 is an equidigital number, since it uses as much as digits as its factorization.

28842392401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 28842392401 in words is "twenty-eight billion, eight hundred forty-two million, three hundred ninety-two thousand, four hundred one".