1838108865765 has 16 divisors (see below), whose sum is σ = 2941066453248. Its totient is φ = 980293972416.

The previous prime is 1838108865763. The next prime is 1838108865809. The reversal of 1838108865765 is 5675688018381.

It is not a de Polignac number, because 1838108865765 - 2¹ = 1838108865763 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1838108865696 and 1838108865705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838108865763) 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, 1424034 + ... + 2388323.

It is an arithmetic number, because the mean of its divisors is an integer number (183816653328).

Almost surely, 2^{1838108865765} is an apocalyptic number.

1838108865765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1838108865765 is a deficient number, since it is larger than the sum of its proper divisors (1102957587483).

1838108865765 is a wasteful number, since it uses less digits than its factorization.

1838108865765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844508.

The product of its (nonzero) digits is 77414400, while the sum is 66.

The spelling of 1838108865765 in words is "one trillion, eight hundred thirty-eight billion, one hundred eight million, eight hundred sixty-five thousand, seven hundred sixty-five".