85809932486389 has 12 divisors (see below), whose sum is σ = 92026226736864. Its totient is φ = 79860712695984.

The previous prime is 85809932486381. The next prime is 85809932486407. The reversal of 85809932486389 is 98368423990858.

It is not a de Polignac number, because 85809932486389 - 2³ = 85809932486381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85809932486381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1362593287 + ... + 1362656260.

It is an arithmetic number, because the mean of its divisors is an integer number (7668852228072).

Almost surely, 2^{85809932486389} is an apocalyptic number.

It is an amenable number.

85809932486389 is a deficient number, since it is larger than the sum of its proper divisors (6216294250475).

85809932486389 is a wasteful number, since it uses less digits than its factorization.

85809932486389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725249644 (or 2725249607 counting only the distinct ones).

The product of its (nonzero) digits is 6449725440, while the sum is 82.

The spelling of 85809932486389 in words is "eighty-five trillion, eight hundred nine billion, nine hundred thirty-two million, four hundred eighty-six thousand, three hundred eighty-nine".