3837819949 has 4 divisors (see below), whose sum is σ = 3839191936. Its totient is φ = 3836447964.

The previous prime is 3837819943. The next prime is 3837819967. The reversal of 3837819949 is 9499187383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3837819949 - 2²¹ = 3835722797 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 (3837819943) 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, 681789 + ... + 687394.

It is an arithmetic number, because the mean of its divisors is an integer number (959797984).

Almost surely, 2^3837819949 is an apocalyptic number.

It is an amenable number.

3837819949 is a deficient number, since it is larger than the sum of its proper divisors (1371987).

3837819949 is a wasteful number, since it uses less digits than its factorization.

3837819949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371986.

The product of its digits is 11757312, while the sum is 61.

The square root of 3837819949 is about 61950.1408311555. The cubic root of 3837819949 is about 1565.6506597064.

The spelling of 3837819949 in words is "three billion, eight hundred thirty-seven million, eight hundred nineteen thousand, nine hundred forty-nine".