28420210131407 has 2 divisors, whose sum is σ = 28420210131408. Its totient is φ = 28420210131406.

The previous prime is 28420210131359. The next prime is 28420210131409. The reversal of 28420210131407 is 70413101202482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28420210131407 - 2¹⁴ = 28420210115023 is a prime.

Together with 28420210131409, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28420210131409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14210105065703 + 14210105065704.

It is an arithmetic number, because the mean of its divisors is an integer number (14210105065704).

Almost surely, 2^{28420210131407} is an apocalyptic number.

28420210131407 is a deficient number, since it is larger than the sum of its proper divisors (1).

28420210131407 is an equidigital number, since it uses as much as digits as its factorization.

28420210131407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 35.

Adding to 28420210131407 its reverse (70413101202482), we get a palindrome (98833311333889).

The spelling of 28420210131407 in words is "twenty-eight trillion, four hundred twenty billion, two hundred ten million, one hundred thirty-one thousand, four hundred seven".