3833343742821 has 16 divisors (see below), whose sum is σ = 5128315315200. Its totient is φ = 2546969092848.

The previous prime is 3833343742807. The next prime is 3833343742859. The reversal of 3833343742821 is 1282473433383.

It is a happy number.

It is not a de Polignac number, because 3833343742821 - 2⁹ = 3833343742309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3833343742121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8699350 + ... + 9129368.

It is an arithmetic number, because the mean of its divisors is an integer number (320519707200).

Almost surely, 2^{3833343742821} is an apocalyptic number.

It is an amenable number.

3833343742821 is a deficient number, since it is larger than the sum of its proper divisors (1294971572379).

3833343742821 is a wasteful number, since it uses less digits than its factorization.

3833343742821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440008.

The product of its digits is 6967296, while the sum is 51.

The spelling of 3833343742821 in words is "three trillion, eight hundred thirty-three billion, three hundred forty-three million, seven hundred forty-two thousand, eight hundred twenty-one".