2180749213696 has 135 divisors (see below), whose sum is σ = 4446532787151. Its totient is φ = 1069487652864.

The previous prime is 2180749213693. The next prime is 2180749213697. The reversal of 2180749213696 is 6963129470812.

The square root of 2180749213696 is 1476736.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2180749213696.

It is not an unprimeable number, because it can be changed into a prime (2180749213693) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15688843195 + ... + 15688843333.

Almost surely, 2^{2180749213696} is an apocalyptic number.

2180749213696 is the 1476736-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2180749213696

2180749213696 is an abundant number, since it is smaller than the sum of its proper divisors (2265783573455).

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

2180749213696 is an frugal number, since it uses more digits than its factorization.

2180749213696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 58.

The spelling of 2180749213696 in words is "two trillion, one hundred eighty billion, seven hundred forty-nine million, two hundred thirteen thousand, six hundred ninety-six".