2748257989 has 8 divisors (see below), whose sum is σ = 2788801920. Its totient is φ = 2707765200.

The previous prime is 2748257977. The next prime is 2748258013. The reversal of 2748257989 is 9897528472.

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 2748257989 - 2⁵ = 2748257957 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 (2748257929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103152 + ... + 127030.

It is an arithmetic number, because the mean of its divisors is an integer number (348600240).

Almost surely, 2^2748257989 is an apocalyptic number.

It is an amenable number.

2748257989 is a deficient number, since it is larger than the sum of its proper divisors (40543931).

2748257989 is a wasteful number, since it uses less digits than its factorization.

2748257989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25571.

The product of its digits is 20321280, while the sum is 61.

The square root of 2748257989 is about 52423.8303541433. The cubic root of 2748257989 is about 1400.7237735474.

The spelling of 2748257989 in words is "two billion, seven hundred forty-eight million, two hundred fifty-seven thousand, nine hundred eighty-nine".