85439653496 has 32 divisors (see below), whose sum is σ = 163770085440. Its totient is φ = 41769433728.

The previous prime is 85439653493. The next prime is 85439653513. The reversal of 85439653496 is 69435693458.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85439653493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268730 + ... + 493046.

It is an arithmetic number, because the mean of its divisors is an integer number (5117815170).

Almost surely, 2^85439653496 is an apocalyptic number.

It is an amenable number.

85439653496 is a deficient number, since it is larger than the sum of its proper divisors (78330431944).

85439653496 is a wasteful number, since it uses less digits than its factorization.

85439653496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225383 (or 225379 counting only the distinct ones).

The product of its digits is 83980800, while the sum is 62.

The spelling of 85439653496 in words is "eighty-five billion, four hundred thirty-nine million, six hundred fifty-three thousand, four hundred ninety-six".