18630003217540 has 144 divisors (see below), whose sum is σ = 47387896484544. Its totient is φ = 6107998659840.

The previous prime is 18630003217531. The next prime is 18630003217549. The reversal of 18630003217540 is 4571230003681.

It is an interprime number because it is at equal distance from previous prime (18630003217531) and next prime (18630003217549).

It is a junction number, because it is equal to n+sod(n) for n = 18630003217493 and 18630003217502.

It is not an unprimeable number, because it can be changed into a prime (18630003217549) 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 47 ways as a sum of consecutive naturals, for example, 5533042 + ... + 8238601.

It is an arithmetic number, because the mean of its divisors is an integer number (329082614476).

Almost surely, 2^{18630003217540} is an apocalyptic number.

18630003217540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18630003217540 is an abundant number, since it is smaller than the sum of its proper divisors (28757893267004).

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

18630003217540 is a wasteful number, since it uses less digits than its factorization.

18630003217540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13771730 (or 13771717 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 18630003217540 in words is "eighteen trillion, six hundred thirty billion, three million, two hundred seventeen thousand, five hundred forty".