85207409347 has 8 divisors (see below), whose sum is σ = 86425084512. Its totient is φ = 83990222400.

The previous prime is 85207409321. The next prime is 85207409359. The reversal of 85207409347 is 74390470258.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85207409347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85207409347.

It is not an unprimeable number, because it can be changed into a prime (85207409387) 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, 236983 + ... + 475999.

It is an arithmetic number, because the mean of its divisors is an integer number (10803135564).

Almost surely, 2^85207409347 is an apocalyptic number.

85207409347 is a deficient number, since it is larger than the sum of its proper divisors (1217675165).

85207409347 is a wasteful number, since it uses less digits than its factorization.

85207409347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244109.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 85207409347 in words is "eighty-five billion, two hundred seven million, four hundred nine thousand, three hundred forty-seven".