3873238842838 has 4 divisors (see below), whose sum is σ = 5809858264260. Its totient is φ = 1936619421418.

The previous prime is 3873238842799. The next prime is 3873238842959. The reversal of 3873238842838 is 8382488323783.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 968309710708 + ... + 968309710711.

It is an arithmetic number, because the mean of its divisors is an integer number (1452464566065).

Almost surely, 2^{3873238842838} is an apocalyptic number.

3873238842838 is a deficient number, since it is larger than the sum of its proper divisors (1936619421422).

3873238842838 is a wasteful number, since it uses less digits than its factorization.

3873238842838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936619421421.

The product of its digits is 297271296, while the sum is 67.

The spelling of 3873238842838 in words is "three trillion, eight hundred seventy-three billion, two hundred thirty-eight million, eight hundred forty-two thousand, eight hundred thirty-eight".