85628924039 has 2 divisors, whose sum is σ = 85628924040. Its totient is φ = 85628924038.

The previous prime is 85628924023. The next prime is 85628924093. The reversal of 85628924039 is 93042982658.

Together with next prime (85628924093) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85628924039 - 2⁴ = 85628924023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85628924009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42814462019 + 42814462020.

It is an arithmetic number, because the mean of its divisors is an integer number (42814462020).

Almost surely, 2^85628924039 is an apocalyptic number.

85628924039 is a deficient number, since it is larger than the sum of its proper divisors (1).

85628924039 is an equidigital number, since it uses as much as digits as its factorization.

85628924039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7464960, while the sum is 56.

The spelling of 85628924039 in words is "eighty-five billion, six hundred twenty-eight million, nine hundred twenty-four thousand, thirty-nine".