85454342837 has 2 divisors, whose sum is σ = 85454342838. Its totient is φ = 85454342836.

The previous prime is 85454342773. The next prime is 85454342839. The reversal of 85454342837 is 73824345458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48664801201 + 36789541636 = 220601^2 + 191806^2 .

It is a cyclic number.

It is not a de Polignac number, because 85454342837 - 2⁶ = 85454342773 is a prime.

Together with 85454342839, 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 (85454342839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42727171418 + 42727171419.

It is an arithmetic number, because the mean of its divisors is an integer number (42727171419).

Almost surely, 2^85454342837 is an apocalyptic number.

It is an amenable number.

85454342837 is a deficient number, since it is larger than the sum of its proper divisors (1).

85454342837 is an equidigital number, since it uses as much as digits as its factorization.

85454342837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12902400, while the sum is 53.

The spelling of 85454342837 in words is "eighty-five billion, four hundred fifty-four million, three hundred forty-two thousand, eight hundred thirty-seven".