2180641903 has 8 divisors (see below), whose sum is σ = 2392174080. Its totient is φ = 1971325080.

The previous prime is 2180641889. The next prime is 2180641909. The reversal of 2180641903 is 3091460812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2180641903 - 2⁵ = 2180641871 is a prime.

It is a super-2 number, since 2×2180641903² = 9510398218238922818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180641909) 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 7 ways as a sum of consecutive naturals, for example, 551775 + ... + 555712.

It is an arithmetic number, because the mean of its divisors is an integer number (299021760).

Almost surely, 2^2180641903 is an apocalyptic number.

2180641903 is a deficient number, since it is larger than the sum of its proper divisors (211532177).

2180641903 is a wasteful number, since it uses less digits than its factorization.

2180641903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107677.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 2180641903 is about 46697.3436396547. The cubic root of 2180641903 is about 1296.7655099265.

The spelling of 2180641903 in words is "two billion, one hundred eighty million, six hundred forty-one thousand, nine hundred three".