85078077037 has 2 divisors, whose sum is σ = 85078077038. Its totient is φ = 85078077036.

The previous prime is 85078077011. The next prime is 85078077269. The reversal of 85078077037 is 73077087058.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79425894276 + 5652182761 = 281826^2 + 75181^2 .

It is a cyclic number.

It is not a de Polignac number, because 85078077037 - 2²⁷ = 84943859309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85078047037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42539038518 + 42539038519.

It is an arithmetic number, because the mean of its divisors is an integer number (42539038519).

Almost surely, 2^85078077037 is an apocalyptic number.

It is an amenable number.

85078077037 is a deficient number, since it is larger than the sum of its proper divisors (1).

85078077037 is an equidigital number, since it uses as much as digits as its factorization.

85078077037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304960, while the sum is 52.

The spelling of 85078077037 in words is "eighty-five billion, seventy-eight million, seventy-seven thousand, thirty-seven".