2180123708 has 48 divisors (see below), whose sum is σ = 4418749440. Its totient is φ = 921849984.

The previous prime is 2180123599. The next prime is 2180123723. The reversal of 2180123708 is 8073210812.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2050385 + ... + 2051447.

It is an arithmetic number, because the mean of its divisors is an integer number (92057280).

Almost surely, 2^2180123708 is an apocalyptic number.

2180123708 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2180123708 is an abundant number, since it is smaller than the sum of its proper divisors (2238625732).

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

2180123708 is a wasteful number, since it uses less digits than its factorization.

2180123708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986 (or 1984 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 2180123708 is about 46691.7948680494. The cubic root of 2180123708 is about 1296.6627831961.

The spelling of 2180123708 in words is "two billion, one hundred eighty million, one hundred twenty-three thousand, seven hundred eight".