4078631111 has 2 divisors, whose sum is σ = 4078631112. Its totient is φ = 4078631110.

The previous prime is 4078631099. The next prime is 4078631173. The reversal of 4078631111 is 1111368704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4078631111 - 2³⁰ = 3004889287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4078631191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2039315555 + 2039315556.

It is an arithmetic number, because the mean of its divisors is an integer number (2039315556).

Almost surely, 2^4078631111 is an apocalyptic number.

4078631111 is a deficient number, since it is larger than the sum of its proper divisors (1).

4078631111 is an equidigital number, since it uses as much as digits as its factorization.

4078631111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 4078631111 is about 63864.1613974536. The cubic root of 4078631111 is about 1597.7352216610.

Adding to 4078631111 its reverse (1111368704), we get a palindrome (5189999815).

The spelling of 4078631111 in words is "four billion, seventy-eight million, six hundred thirty-one thousand, one hundred eleven".