2180377929 has 8 divisors (see below), whose sum is σ = 2919866560. Its totient is φ = 1447237296.

The previous prime is 2180377919. The next prime is 2180377933. The reversal of 2180377929 is 9297730812.

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

It is a de Polignac number, because none of the positive numbers 2^k-2180377929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2180377919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1586197 + ... + 1587570.

It is an arithmetic number, because the mean of its divisors is an integer number (364983320).

Almost surely, 2^2180377929 is an apocalyptic number.

It is an amenable number.

2180377929 is a deficient number, since it is larger than the sum of its proper divisors (739488631).

2180377929 is a wasteful number, since it uses less digits than its factorization.

2180377929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173999.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 2180377929 is about 46694.5171192507. The cubic root of 2180377929 is about 1296.7131818801.

The spelling of 2180377929 in words is "two billion, one hundred eighty million, three hundred seventy-seven thousand, nine hundred twenty-nine".