13869867803650 has 48 divisors (see below), whose sum is σ = 25835111310888. Its totient is φ = 5539959360000.

The previous prime is 13869867803591. The next prime is 13869867803663. The reversal of 13869867803650 is 5630876896831.

It can be written as a sum of positive squares in 12 ways, for example, as 2758558913881 + 11111308889769 = 1660891^2 + 3333363^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13869867803650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197538550 + ... + 197608750.

Almost surely, 2^{13869867803650} is an apocalyptic number.

13869867803650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13869867803650 is a deficient number, since it is larger than the sum of its proper divisors (11965243507238).

13869867803650 is a wasteful number, since it uses less digits than its factorization.

13869867803650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75847 (or 75842 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 70.

The spelling of 13869867803650 in words is "thirteen trillion, eight hundred sixty-nine billion, eight hundred sixty-seven million, eight hundred three thousand, six hundred fifty".