18234028568450 has 48 divisors (see below), whose sum is σ = 35010831591936. Its totient is φ = 7058031878400.

The previous prime is 18234028568389. The next prime is 18234028568579. The reversal of 18234028568450 is 5486582043281.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37879979 + ... + 38358321.

It is an arithmetic number, because the mean of its divisors is an integer number (729392324832).

Almost surely, 2^{18234028568450} is an apocalyptic number.

18234028568450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18234028568450 is a deficient number, since it is larger than the sum of its proper divisors (16776803023486).

18234028568450 is a wasteful number, since it uses less digits than its factorization.

18234028568450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502979 (or 502974 counting only the distinct ones).

The product of its (nonzero) digits is 14745600, while the sum is 56.

The spelling of 18234028568450 in words is "eighteen trillion, two hundred thirty-four billion, twenty-eight million, five hundred sixty-eight thousand, four hundred fifty".