85429239649 has 8 divisors (see below), whose sum is σ = 96842863040. Its totient is φ = 74707351056.

The previous prime is 85429239587. The next prime is 85429239671. The reversal of 85429239649 is 94693292458.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85429239649 - 2¹¹ = 85429237601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85429239689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172933437 + ... + 172933930.

It is an arithmetic number, because the mean of its divisors is an integer number (12105357880).

Almost surely, 2^85429239649 is an apocalyptic number.

It is an amenable number.

85429239649 is a deficient number, since it is larger than the sum of its proper divisors (11413623391).

85429239649 is a wasteful number, since it uses less digits than its factorization.

85429239649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345867399.

The product of its digits is 33592320, while the sum is 61.

The spelling of 85429239649 in words is "eighty-five billion, four hundred twenty-nine million, two hundred thirty-nine thousand, six hundred forty-nine".