2180625486 has 64 divisors (see below), whose sum is σ = 4842512640. Its totient is φ = 650453760.

The previous prime is 2180625431. The next prime is 2180625487. The reversal of 2180625486 is 6845260812.

2180625486 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180625487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 332701 + ... + 339191.

It is an arithmetic number, because the mean of its divisors is an integer number (75664260).

Almost surely, 2^2180625486 is an apocalyptic number.

2180625486 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2180625486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2421256320).

2180625486 is an abundant number, since it is smaller than the sum of its proper divisors (2661887154).

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

2180625486 is a wasteful number, since it uses less digits than its factorization.

2180625486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6641.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 2180625486 is about 46697.1678584473. The cubic root of 2180625486 is about 1296.7622556779.

The spelling of 2180625486 in words is "two billion, one hundred eighty million, six hundred twenty-five thousand, four hundred eighty-six".