18843100630645 has 16 divisors (see below), whose sum is σ = 24069247416000. Its totient is φ = 14120625138048.

The previous prime is 18843100630609. The next prime is 18843100630681. The reversal of 18843100630645 is 54603600134881.

It is an interprime number because it is at equal distance from previous prime (18843100630609) and next prime (18843100630681).

It is a cyclic number.

It is not a de Polignac number, because 18843100630645 - 2²⁵ = 18843067076213 is a prime.

It is a super-2 number, since 2×18843100630645² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1114308555 + ... + 1114325464.

It is an arithmetic number, because the mean of its divisors is an integer number (1504327963500).

Almost surely, 2^{18843100630645} is an apocalyptic number.

It is an amenable number.

18843100630645 is a deficient number, since it is larger than the sum of its proper divisors (5226146785355).

18843100630645 is a wasteful number, since it uses less digits than its factorization.

18843100630645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228634132.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 18843100630645 in words is "eighteen trillion, eight hundred forty-three billion, one hundred million, six hundred thirty thousand, six hundred forty-five".