18338901833950 has 24 divisors (see below), whose sum is σ = 34120056446712. Its totient is φ = 7333474919520.

The previous prime is 18338901833947. The next prime is 18338901833999. The reversal of 18338901833950 is 5933810983381.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51967744 + ... + 52319443.

It is an arithmetic number, because the mean of its divisors is an integer number (1421669018613).

Almost surely, 2^{18338901833950} is an apocalyptic number.

18338901833950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18338901833950 is a deficient number, since it is larger than the sum of its proper divisors (15781154612762).

18338901833950 is a wasteful number, since it uses less digits than its factorization.

18338901833950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104290716 (or 104290711 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 61.

The spelling of 18338901833950 in words is "eighteen trillion, three hundred thirty-eight billion, nine hundred one million, eight hundred thirty-three thousand, nine hundred fifty".