838195408379 has 4 divisors (see below), whose sum is σ = 957937609584. Its totient is φ = 718453207176.

The previous prime is 838195408331. The next prime is 838195408387. The reversal of 838195408379 is 973804591838.

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 838195408379 - 2⁸ = 838195408123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (838195408079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59871100592 + ... + 59871100605.

It is an arithmetic number, because the mean of its divisors is an integer number (239484402396).

Almost surely, 2^838195408379 is an apocalyptic number.

838195408379 is a deficient number, since it is larger than the sum of its proper divisors (119742201205).

838195408379 is a wasteful number, since it uses less digits than its factorization.

838195408379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119742201204.

The product of its (nonzero) digits is 52254720, while the sum is 65.

The spelling of 838195408379 in words is "eight hundred thirty-eight billion, one hundred ninety-five million, four hundred eight thousand, three hundred seventy-nine".