1850018350117 has 24 divisors (see below), whose sum is σ = 2172374731800. Its totient is φ = 1570831073280.

The previous prime is 1850018350111. The next prime is 1850018350153. The reversal of 1850018350117 is 7110538100581.

It can be written as a sum of positive squares in 4 ways, for example, as 521437075236 + 1328581274881 = 722106^2 + 1152641^2 .

It is not a de Polignac number, because 1850018350117 - 2¹⁹ = 1850017825829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1850018350117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1850018350111) 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, 1873509 + ... + 2685157.

It is an arithmetic number, because the mean of its divisors is an integer number (90515613825).

Almost surely, 2^{1850018350117} is an apocalyptic number.

It is an amenable number.

1850018350117 is a deficient number, since it is larger than the sum of its proper divisors (322356381683).

1850018350117 is a wasteful number, since it uses less digits than its factorization.

1850018350117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812101 (or 812094 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 40.

The spelling of 1850018350117 in words is "one trillion, eight hundred fifty billion, eighteen million, three hundred fifty thousand, one hundred seventeen".