2489580861 has 32 divisors (see below), whose sum is σ = 3584020608. Its totient is φ = 1531453440.

The previous prime is 2489580839. The next prime is 2489580869. The reversal of 2489580861 is 1680859842.

It is not a de Polignac number, because 2489580861 - 2⁷ = 2489580733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2489580869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1097050 + ... + 1099316.

It is an arithmetic number, because the mean of its divisors is an integer number (112000644).

Almost surely, 2^2489580861 is an apocalyptic number.

It is an amenable number.

2489580861 is a deficient number, since it is larger than the sum of its proper divisors (1094439747).

2489580861 is a wasteful number, since it uses less digits than its factorization.

2489580861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701.

The product of its (nonzero) digits is 1105920, while the sum is 51.

The square root of 2489580861 is about 49895.6998247344. The cubic root of 2489580861 is about 1355.3207232703.

The spelling of 2489580861 in words is "two billion, four hundred eighty-nine million, five hundred eighty thousand, eight hundred sixty-one".