84878820886355 has 16 divisors (see below), whose sum is σ = 107123994526464. Its totient is φ = 64472774471040.

The previous prime is 84878820886339. The next prime is 84878820886367. The reversal of 84878820886355 is 55368802887848.

It is not a de Polignac number, because 84878820886355 - 2⁴ = 84878820886339 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 84878820886355.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5166079484 + ... + 5166095913.

It is an arithmetic number, because the mean of its divisors is an integer number (6695249657904).

Almost surely, 2^{84878820886355} is an apocalyptic number.

84878820886355 is a deficient number, since it is larger than the sum of its proper divisors (22245173640109).

84878820886355 is a wasteful number, since it uses less digits than its factorization.

84878820886355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10332175486.

The product of its (nonzero) digits is 6606028800, while the sum is 80.

The spelling of 84878820886355 in words is "eighty-four trillion, eight hundred seventy-eight billion, eight hundred twenty million, eight hundred eighty-six thousand, three hundred fifty-five".