18530201358 has 40 divisors (see below), whose sum is σ = 41736584208. Its totient is φ = 6144719616.

The previous prime is 18530201353. The next prime is 18530201419. The reversal of 18530201358 is 85310203581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18530201353) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 265066 + ... + 327597.

Almost surely, 2^18530201358 is an apocalyptic number.

18530201358 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18530201358 is an abundant number, since it is smaller than the sum of its proper divisors (23206382850).

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

18530201358 is a wasteful number, since it uses less digits than its factorization.

18530201358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592870 (or 592861 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 18530201358 in words is "eighteen billion, five hundred thirty million, two hundred one thousand, three hundred fifty-eight".