28081207850207 has 2 divisors, whose sum is σ = 28081207850208. Its totient is φ = 28081207850206.

The previous prime is 28081207850173. The next prime is 28081207850231. The reversal of 28081207850207 is 70205870218082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28081207850207 - 2¹⁴ = 28081207833823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28081207850287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14040603925103 + 14040603925104.

It is an arithmetic number, because the mean of its divisors is an integer number (14040603925104).

Almost surely, 2^{28081207850207} is an apocalyptic number.

28081207850207 is a deficient number, since it is larger than the sum of its proper divisors (1).

28081207850207 is an equidigital number, since it uses as much as digits as its factorization.

28081207850207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1003520, while the sum is 50.

The spelling of 28081207850207 in words is "twenty-eight trillion, eighty-one billion, two hundred seven million, eight hundred fifty thousand, two hundred seven".