2481649289 has 8 divisors (see below), whose sum is σ = 2836474368. Its totient is φ = 2126900160.

The previous prime is 2481649267. The next prime is 2481649309. The reversal of 2481649289 is 9829461842.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2481649289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2481649289.

It is not an unprimeable number, because it can be changed into a prime (2481649589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105224 + ... + 126630.

It is an arithmetic number, because the mean of its divisors is an integer number (354559296).

Almost surely, 2^2481649289 is an apocalyptic number.

It is an amenable number.

2481649289 is a deficient number, since it is larger than the sum of its proper divisors (354825079).

2481649289 is a wasteful number, since it uses less digits than its factorization.

2481649289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37975.

The product of its digits is 1990656, while the sum is 53.

The square root of 2481649289 is about 49816.1548997913. The cubic root of 2481649289 is about 1353.8798836635.

The spelling of 2481649289 in words is "two billion, four hundred eighty-one million, six hundred forty-nine thousand, two hundred eighty-nine".