4378020263 has 4 divisors (see below), whose sum is σ = 4378163328. Its totient is φ = 4377877200.

The previous prime is 4378020211. The next prime is 4378020277. The reversal of 4378020263 is 3620208734.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4378020263 - 2²⁸ = 4109584807 is a prime.

It is a super-2 number, since 2×4378020263² = 38334122846477178338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378022263) 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, 5006 + ... + 93707.

It is an arithmetic number, because the mean of its divisors is an integer number (1094540832).

Almost surely, 2^4378020263 is an apocalyptic number.

4378020263 is a deficient number, since it is larger than the sum of its proper divisors (143065).

4378020263 is an equidigital number, since it uses as much as digits as its factorization.

4378020263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143064.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 4378020263 is about 66166.6098799085. The cubic root of 4378020263 is about 1635.9094296847.

Adding to 4378020263 its reverse (3620208734), we get a palindrome (7998228997).

The spelling of 4378020263 in words is "four billion, three hundred seventy-eight million, twenty thousand, two hundred sixty-three".