18850350533550 has 48 divisors (see below), whose sum is σ = 46908421887600. Its totient is φ = 5009603952640.

The previous prime is 18850350533533. The next prime is 18850350533551. The reversal of 18850350533550 is 5533505305881.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18850350533493 and 18850350533502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18850350533551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 214408275 + ... + 214496174.

It is an arithmetic number, because the mean of its divisors is an integer number (977258789325).

Almost surely, 2^{18850350533550} is an apocalyptic number.

18850350533550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18850350533550 is an abundant number, since it is smaller than the sum of its proper divisors (28058071354050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18850350533550 is a wasteful number, since it uses less digits than its factorization.

18850350533550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428904757 (or 428904752 counting only the distinct ones).

The product of its (nonzero) digits is 5400000, while the sum is 51.

The spelling of 18850350533550 in words is "eighteen trillion, eight hundred fifty billion, three hundred fifty million, five hundred thirty-three thousand, five hundred fifty".