4194202778 has 16 divisors (see below), whose sum is σ = 6517726560. Its totient is φ = 2021838000.

The previous prime is 4194202769. The next prime is 4194202811. The reversal of 4194202778 is 8772024914.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12248 + ... + 92403.

It is an arithmetic number, because the mean of its divisors is an integer number (407357910).

Almost surely, 2^4194202778 is an apocalyptic number.

4194202778 is a deficient number, since it is larger than the sum of its proper divisors (2323523782).

4194202778 is a wasteful number, since it uses less digits than its factorization.

4194202778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105373.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 4194202778 is about 64762.6650007549. The cubic root of 4194202778 is about 1612.6859705628.

The spelling of 4194202778 in words is "four billion, one hundred ninety-four million, two hundred two thousand, seven hundred seventy-eight".