3781911038 has 4 divisors (see below), whose sum is σ = 5672866560. Its totient is φ = 1890955518.

The previous prime is 3781910987. The next prime is 3781911047. The reversal of 3781911038 is 8301191873.

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

It is a junction number, because it is equal to n+sod(n) for n = 3781910986 and 3781911004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 945477758 + ... + 945477761.

It is an arithmetic number, because the mean of its divisors is an integer number (1418216640).

Almost surely, 2^3781911038 is an apocalyptic number.

3781911038 is a deficient number, since it is larger than the sum of its proper divisors (1890955522).

3781911038 is a wasteful number, since it uses less digits than its factorization.

3781911038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890955521.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 3781911038 is about 61497.2441496365. The cubic root of 3781911038 is about 1558.0107009723.

The spelling of 3781911038 in words is "three billion, seven hundred eighty-one million, nine hundred eleven thousand, thirty-eight".