18038167530 has 32 divisors (see below), whose sum is σ = 43737914304. Its totient is φ = 4760587776.

The previous prime is 18038167507. The next prime is 18038167549. The reversal of 18038167530 is 3576183081.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3096432 + ... + 3102251.

It is an arithmetic number, because the mean of its divisors is an integer number (1366809822).

Almost surely, 2^18038167530 is an apocalyptic number.

18038167530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18038167530 is an abundant number, since it is smaller than the sum of its proper divisors (25699746774).

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

18038167530 is a wasteful number, since it uses less digits than its factorization.

18038167530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6198790.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 18038167530 in words is "eighteen billion, thirty-eight million, one hundred sixty-seven thousand, five hundred thirty".