18339627951850 has 24 divisors (see below), whose sum is σ = 34111906430400. Its totient is φ = 7335808505520.

The previous prime is 18339627951839. The next prime is 18339627951851. The reversal of 18339627951850 is 5815972693381.

It is not an unprimeable number, because it can be changed into a prime (18339627951851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8455551 + ... + 10400749.

It is an arithmetic number, because the mean of its divisors is an integer number (1421329434600).

Almost surely, 2^{18339627951850} is an apocalyptic number.

18339627951850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18339627951850 is a deficient number, since it is larger than the sum of its proper divisors (15772278478550).

18339627951850 is a wasteful number, since it uses less digits than its factorization.

18339627951850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133774 (or 2133769 counting only the distinct ones).

The product of its (nonzero) digits is 97977600, while the sum is 67.

The spelling of 18339627951850 in words is "eighteen trillion, three hundred thirty-nine billion, six hundred twenty-seven million, nine hundred fifty-one thousand, eight hundred fifty".