84378662211 has 16 divisors (see below), whose sum is σ = 112941256320. Its totient is φ = 56034392640.

The previous prime is 84378662153. The next prime is 84378662227. The reversal of 84378662211 is 11226687348.

It is not a de Polignac number, because 84378662211 - 2⁷ = 84378662083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84378662281) 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, 2708956 + ... + 2739926.

It is an arithmetic number, because the mean of its divisors is an integer number (7058828520).

Almost surely, 2^84378662211 is an apocalyptic number.

84378662211 is a deficient number, since it is larger than the sum of its proper divisors (28562594109).

84378662211 is a wasteful number, since it uses less digits than its factorization.

84378662211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34466.

The product of its digits is 774144, while the sum is 48.

The spelling of 84378662211 in words is "eighty-four billion, three hundred seventy-eight million, six hundred sixty-two thousand, two hundred eleven".