18350350000 has 60 divisors (see below), whose sum is σ = 44439530688. Its totient is φ = 7340120000.

The previous prime is 18350349977. The next prime is 18350350009. The reversal of 18350350000 is 5305381.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (18350350009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133504 + ... + 233503.

Almost surely, 2^18350350000 is an apocalyptic number.

18350350000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18350350000 is an abundant number, since it is smaller than the sum of its proper divisors (26089180688).

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

18350350000 is an frugal number, since it uses more digits than its factorization.

18350350000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367040 (or 367014 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 18350350000 its reverse (5305381), we get a palindrome (18355655381).

The spelling of 18350350000 in words is "eighteen billion, three hundred fifty million, three hundred fifty thousand".