84197794245 has 16 divisors (see below), whose sum is σ = 141806811840. Its totient is φ = 42542043264.

The previous prime is 84197794243. The next prime is 84197794273. The reversal of 84197794245 is 54249779148.

It is not a de Polignac number, because 84197794245 - 2¹ = 84197794243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84197794243) 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 15 ways as a sum of consecutive naturals, for example, 147715144 + ... + 147715713.

It is an arithmetic number, because the mean of its divisors is an integer number (8862925740).

Almost surely, 2^84197794245 is an apocalyptic number.

It is an amenable number.

84197794245 is a deficient number, since it is larger than the sum of its proper divisors (57609017595).

84197794245 is a wasteful number, since it uses less digits than its factorization.

84197794245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295430884.

The product of its digits is 20321280, while the sum is 60.

The spelling of 84197794245 in words is "eighty-four billion, one hundred ninety-seven million, seven hundred ninety-four thousand, two hundred forty-five".