2180269680 has 160 divisors (see below), whose sum is σ = 7033264128. Its totient is φ = 558105600.

The previous prime is 2180269673. The next prime is 2180269681. The reversal of 2180269680 is 869620812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180269681) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 973522 + ... + 975758.

Almost surely, 2^2180269680 is an apocalyptic number.

2180269680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2180269680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3516632064).

2180269680 is an abundant number, since it is smaller than the sum of its proper divisors (4852994448).

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

2180269680 is a wasteful number, since it uses less digits than its factorization.

2180269680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415 (or 2409 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 2180269680 is about 46693.3579859063. The cubic root of 2180269680 is about 1296.6917222627.

The spelling of 2180269680 in words is "two billion, one hundred eighty million, two hundred sixty-nine thousand, six hundred eighty".