85023939039 has 12 divisors (see below), whose sum is σ = 122756457096. Its totient is φ = 52322423712.

The previous prime is 85023939037. The next prime is 85023939073. The reversal of 85023939039 is 93093932058.

It is not a de Polignac number, because 85023939039 - 2¹ = 85023939037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85023938982 and 85023939000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85023939031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83849532 + ... + 83850545.

It is an arithmetic number, because the mean of its divisors is an integer number (10229704758).

Almost surely, 2^85023939039 is an apocalyptic number.

85023939039 is a deficient number, since it is larger than the sum of its proper divisors (37732518057).

85023939039 is a wasteful number, since it uses less digits than its factorization.

85023939039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167700106 (or 167700093 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 51.

The spelling of 85023939039 in words is "eighty-five billion, twenty-three million, nine hundred thirty-nine thousand, thirty-nine".