4063978493 has 4 divisors (see below), whose sum is σ = 4064258940. Its totient is φ = 4063698048.

The previous prime is 4063978489. The next prime is 4063978531. The reversal of 4063978493 is 3948793604.

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

It can be written as a sum of positive squares in 2 ways, for example, as 937155769 + 3126822724 = 30613^2 + 55918^2 .

It is a cyclic number.

It is not a de Polignac number, because 4063978493 - 2² = 4063978489 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 (4063978433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117230 + ... + 147887.

It is an arithmetic number, because the mean of its divisors is an integer number (1016064735).

Almost surely, 2^4063978493 is an apocalyptic number.

It is an amenable number.

4063978493 is a deficient number, since it is larger than the sum of its proper divisors (280447).

4063978493 is a wasteful number, since it uses less digits than its factorization.

4063978493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280446.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The square root of 4063978493 is about 63749.3411181637. The cubic root of 4063978493 is about 1595.8196202206.

The spelling of 4063978493 in words is "four billion, sixty-three million, nine hundred seventy-eight thousand, four hundred ninety-three".