84779840395 has 16 divisors (see below), whose sum is σ = 107865328320. Its totient is φ = 63748271104.

The previous prime is 84779840393. The next prime is 84779840407. The reversal of 84779840395 is 59304897748.

It is a cyclic number.

It is not a de Polignac number, because 84779840395 - 2¹ = 84779840393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84779840393) 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, 608050 + ... + 734359.

It is an arithmetic number, because the mean of its divisors is an integer number (6741583020).

Almost surely, 2^84779840395 is an apocalyptic number.

84779840395 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

84779840395 is a deficient number, since it is larger than the sum of its proper divisors (23085487925).

84779840395 is a wasteful number, since it uses less digits than its factorization.

84779840395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343174.

The product of its (nonzero) digits is 60963840, while the sum is 64.

The spelling of 84779840395 in words is "eighty-four billion, seven hundred seventy-nine million, eight hundred forty thousand, three hundred ninety-five".