2481988769 has 8 divisors (see below), whose sum is σ = 2676452520. Its totient is φ = 2288030976.

The previous prime is 2481988759. The next prime is 2481988771. The reversal of 2481988769 is 9678891842.

It can be written as a sum of positive squares in 4 ways, for example, as 691006369 + 1790982400 = 26287^2 + 42320^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2481988769 - 2⁸ = 2481988513 is a prime.

It is a super-2 number, since 2×2481988769² = 12320536498884270722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2481988709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116264 + ... + 135945.

It is an arithmetic number, because the mean of its divisors is an integer number (334556565).

Almost surely, 2^2481988769 is an apocalyptic number.

It is an amenable number.

2481988769 is a deficient number, since it is larger than the sum of its proper divisors (194463751).

2481988769 is a wasteful number, since it uses less digits than its factorization.

2481988769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252979.

The product of its digits is 13934592, while the sum is 62.

The square root of 2481988769 is about 49819.5621116846. The cubic root of 2481988769 is about 1353.9416160215.

The spelling of 2481988769 in words is "two billion, four hundred eighty-one million, nine hundred eighty-eight thousand, seven hundred sixty-nine".