84948554857 has 8 divisors (see below), whose sum is σ = 85451410440. Its totient is φ = 84445835520.

The previous prime is 84948554807. The next prime is 84948554879. The reversal of 84948554857 is 75845584948.

It can be written as a sum of positive squares in 4 ways, for example, as 50043479616 + 34905075241 = 223704^2 + 186829^2 .

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 84948554857 - 2³⁵ = 50588816489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84948554792 and 84948554801.

It is not an unprimeable number, because it can be changed into a prime (84948554807) 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, 1392369 + ... + 1452097.

It is an arithmetic number, because the mean of its divisors is an integer number (10681426305).

Almost surely, 2^84948554857 is an apocalyptic number.

It is an amenable number.

84948554857 is a deficient number, since it is larger than the sum of its proper divisors (502855583).

84948554857 is a wasteful number, since it uses less digits than its factorization.

84948554857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68123.

The product of its digits is 258048000, while the sum is 67.

The spelling of 84948554857 in words is "eighty-four billion, nine hundred forty-eight million, five hundred fifty-four thousand, eight hundred fifty-seven".