84857085807 has 16 divisors (see below), whose sum is σ = 122663839200. Its totient is φ = 51869273472.

The previous prime is 84857085773. The next prime is 84857085821. The reversal of 84857085807 is 70858075848.

It is not a de Polignac number, because 84857085807 - 2⁷ = 84857085679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84857085827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7295608 + ... + 7307229.

It is an arithmetic number, because the mean of its divisors is an integer number (7666489950).

Almost surely, 2^84857085807 is an apocalyptic number.

84857085807 is a deficient number, since it is larger than the sum of its proper divisors (37806753393).

84857085807 is a wasteful number, since it uses less digits than its factorization.

84857085807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14603002.

The product of its (nonzero) digits is 20070400, while the sum is 60.

The spelling of 84857085807 in words is "eighty-four billion, eight hundred fifty-seven million, eighty-five thousand, eight hundred seven".