2196548639 has 4 divisors (see below), whose sum is σ = 2196644856. Its totient is φ = 2196452424.

The previous prime is 2196548591. The next prime is 2196548659. The reversal of 2196548639 is 9368456912.

2196548639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2196548639 - 2⁸ = 2196548383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196548659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7772 + ... + 66734.

It is an arithmetic number, because the mean of its divisors is an integer number (549161214).

Almost surely, 2^2196548639 is an apocalyptic number.

2196548639 is a deficient number, since it is larger than the sum of its proper divisors (96217).

2196548639 is an equidigital number, since it uses as much as digits as its factorization.

2196548639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96216.

The product of its digits is 2799360, while the sum is 53.

The square root of 2196548639 is about 46867.3515253422. The cubic root of 2196548639 is about 1299.9109680644.

The spelling of 2196548639 in words is "two billion, one hundred ninety-six million, five hundred forty-eight thousand, six hundred thirty-nine".