83855885837857 has 8 divisors (see below), whose sum is σ = 96389259362496. Its totient is φ = 71461002628752.

The previous prime is 83855885837833. The next prime is 83855885837873. The reversal of 83855885837857 is 75873858855838.

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

It is a cyclic number.

It is not a de Polignac number, because 83855885837857 - 2³¹ = 83853738354209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83855885837057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34622577583 + ... + 34622580004.

It is an arithmetic number, because the mean of its divisors is an integer number (12048657420312).

Almost surely, 2^{83855885837857} is an apocalyptic number.

It is an amenable number.

83855885837857 is a deficient number, since it is larger than the sum of its proper divisors (12533373524639).

83855885837857 is a wasteful number, since it uses less digits than its factorization.

83855885837857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69245157767.

The product of its digits is 72253440000, while the sum is 88.

The spelling of 83855885837857 in words is "eighty-three trillion, eight hundred fifty-five billion, eight hundred eighty-five million, eight hundred thirty-seven thousand, eight hundred fifty-seven".