4123296778 has 4 divisors (see below), whose sum is σ = 6184945170. Its totient is φ = 2061648388.

The previous prime is 4123296767. The next prime is 4123296787. The reversal of 4123296778 is 8776923214.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8776923214 = 2 ⋅4388461607.

It can be written as a sum of positive squares in only one way, i.e., 3147546609 + 975750169 = 56103^2 + 31237^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030824193 + ... + 1030824196.

Almost surely, 2^4123296778 is an apocalyptic number.

4123296778 is a deficient number, since it is larger than the sum of its proper divisors (2061648392).

4123296778 is a wasteful number, since it uses less digits than its factorization.

4123296778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061648391.

The product of its digits is 1016064, while the sum is 49.

The square root of 4123296778 is about 64212.9019590300. The cubic root of 4123296778 is about 1603.5464015586.

The spelling of 4123296778 in words is "four billion, one hundred twenty-three million, two hundred ninety-six thousand, seven hundred seventy-eight".