838345543838 has 16 divisors (see below), whose sum is σ = 1380575991024. Its totient is φ = 378638981760.

The previous prime is 838345543817. The next prime is 838345543859.

838345543838 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (838345543817) and next prime (838345543859).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121355195 + ... + 121362102.

It is an arithmetic number, because the mean of its divisors is an integer number (86285999439).

Almost surely, 2^838345543838 is an apocalyptic number.

838345543838 is a deficient number, since it is larger than the sum of its proper divisors (542230447186).

838345543838 is a wasteful number, since it uses less digits than its factorization.

838345543838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242717467.

The product of its digits is 132710400, while the sum is 62.

The spelling of 838345543838 in words is "eight hundred thirty-eight billion, three hundred forty-five million, five hundred forty-three thousand, eight hundred thirty-eight".