4194779047 has 2 divisors, whose sum is σ = 4194779048. Its totient is φ = 4194779046.

The previous prime is 4194779041. The next prime is 4194779089. The reversal of 4194779047 is 7409774914.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4194779047 - 2³¹ = 2047295399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4194778985 and 4194779003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4194779041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2097389523 + 2097389524.

It is an arithmetic number, because the mean of its divisors is an integer number (2097389524).

Almost surely, 2^4194779047 is an apocalyptic number.

4194779047 is a deficient number, since it is larger than the sum of its proper divisors (1).

4194779047 is an equidigital number, since it uses as much as digits as its factorization.

4194779047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The square root of 4194779047 is about 64767.1139313772. The cubic root of 4194779047 is about 1612.7598263443.

The spelling of 4194779047 in words is "four billion, one hundred ninety-four million, seven hundred seventy-nine thousand, forty-seven".