4078246663479 has 4 divisors (see below), whose sum is σ = 5437662217976. Its totient is φ = 2718831108984.

The previous prime is 4078246663451. The next prime is 4078246663487. The reversal of 4078246663479 is 9743666428704.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4078246663479 - 2²⁹ = 4077709792567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4078246463479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679707777244 + ... + 679707777249.

It is an arithmetic number, because the mean of its divisors is an integer number (1359415554494).

Almost surely, 2^{4078246663479} is an apocalyptic number.

4078246663479 is a deficient number, since it is larger than the sum of its proper divisors (1359415554497).

4078246663479 is a wasteful number, since it uses less digits than its factorization.

4078246663479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359415554496.

The product of its (nonzero) digits is 292626432, while the sum is 66.

The spelling of 4078246663479 in words is "four trillion, seventy-eight billion, two hundred forty-six million, six hundred sixty-three thousand, four hundred seventy-nine".