1818103680 has 96 divisors (see below), whose sum is σ = 6278159160. Its totient is φ = 484826112.

The previous prime is 1818103643. The next prime is 1818103697. The reversal of 1818103680 is 863018181.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152062 + ... + 163581.

Almost surely, 2^1818103680 is an apocalyptic number.

1818103680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1818103680 is an abundant number, since it is smaller than the sum of its proper divisors (4460055480).

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

1818103680 is a wasteful number, since it uses less digits than its factorization.

1818103680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315668 (or 315653 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 1818103680 is about 42639.2270098791. The cubic root of 1818103680 is about 1220.5049598290.

The spelling of 1818103680 in words is "one billion, eight hundred eighteen million, one hundred three thousand, six hundred eighty".