3781319063 has 4 divisors (see below), whose sum is σ = 3826877208. Its totient is φ = 3735760920.

The previous prime is 3781318913. The next prime is 3781319093. The reversal of 3781319063 is 3609131873.

3781319063 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 3781319063 - 2¹⁸ = 3781056919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3781319063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3781319093) 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, 22778948 + ... + 22779113.

It is an arithmetic number, because the mean of its divisors is an integer number (956719302).

Almost surely, 2^3781319063 is an apocalyptic number.

3781319063 is a deficient number, since it is larger than the sum of its proper divisors (45558145).

3781319063 is an equidigital number, since it uses as much as digits as its factorization.

3781319063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45558144.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 3781319063 is about 61492.4309407264. The cubic root of 3781319063 is about 1557.9294059602.

The spelling of 3781319063 in words is "three billion, seven hundred eighty-one million, three hundred nineteen thousand, sixty-three".