83845089655 has 4 divisors (see below), whose sum is σ = 100614107592. Its totient is φ = 67076071720.

The previous prime is 83845089637. The next prime is 83845089661. The reversal of 83845089655 is 55698054838.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 83845089655 - 2⁷ = 83845089527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83845089593 and 83845089602.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8384508961 + ... + 8384508970.

It is an arithmetic number, because the mean of its divisors is an integer number (25153526898).

Almost surely, 2^83845089655 is an apocalyptic number.

83845089655 is a deficient number, since it is larger than the sum of its proper divisors (16769017937).

83845089655 is a wasteful number, since it uses less digits than its factorization.

83845089655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16769017936.

The product of its (nonzero) digits is 41472000, while the sum is 61.

The spelling of 83845089655 in words is "eighty-three billion, eight hundred forty-five million, eighty-nine thousand, six hundred fifty-five".