2489132661 has 4 divisors (see below), whose sum is σ = 3318843552. Its totient is φ = 1659421772.

The previous prime is 2489132647. The next prime is 2489132663. The reversal of 2489132661 is 1662319842.

2489132661 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 Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2489132661 - 2⁵ = 2489132629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2489132663) 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, 414855441 + ... + 414855446.

It is an arithmetic number, because the mean of its divisors is an integer number (829710888).

Almost surely, 2^2489132661 is an apocalyptic number.

It is an amenable number.

2489132661 is a deficient number, since it is larger than the sum of its proper divisors (829710891).

2489132661 is an equidigital number, since it uses as much as digits as its factorization.

2489132661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829710890.

The product of its digits is 124416, while the sum is 42.

The square root of 2489132661 is about 49891.2082535591. The cubic root of 2489132661 is about 1355.2393854550.

The spelling of 2489132661 in words is "two billion, four hundred eighty-nine million, one hundred thirty-two thousand, six hundred sixty-one".