1383985564238 has 4 divisors (see below), whose sum is σ = 2075978346360. Its totient is φ = 691992782118.

The previous prime is 1383985564219. The next prime is 1383985564243. The reversal of 1383985564238 is 8324655893831.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345996391058 + ... + 345996391061.

It is an arithmetic number, because the mean of its divisors is an integer number (518994586590).

Almost surely, 2^{1383985564238} is an apocalyptic number.

1383985564238 is a deficient number, since it is larger than the sum of its proper divisors (691992782122).

1383985564238 is an equidigital number, since it uses as much as digits as its factorization.

1383985564238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691992782121.

The product of its digits is 149299200, while the sum is 65.

The spelling of 1383985564238 in words is "one trillion, three hundred eighty-three billion, nine hundred eighty-five million, five hundred sixty-four thousand, two hundred thirty-eight".