845545054807 has 2 divisors, whose sum is σ = 845545054808. Its totient is φ = 845545054806.

The previous prime is 845545054777. The next prime is 845545054873. The reversal of 845545054807 is 708450545548.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 845545054807 - 2³⁹ = 295789240919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (845545054897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422772527403 + 422772527404.

It is an arithmetic number, because the mean of its divisors is an integer number (422772527404).

Almost surely, 2^845545054807 is an apocalyptic number.

845545054807 is a deficient number, since it is larger than the sum of its proper divisors (1).

845545054807 is an equidigital number, since it uses as much as digits as its factorization.

845545054807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17920000, while the sum is 55.

The spelling of 845545054807 in words is "eight hundred forty-five billion, five hundred forty-five million, fifty-four thousand, eight hundred seven".