2750749465 has 4 divisors (see below), whose sum is σ = 3300899364. Its totient is φ = 2200599568.

The previous prime is 2750749451. The next prime is 2750749471. The reversal of 2750749465 is 5649470572.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 642470409 + 2108279056 = 25347^2 + 45916^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2750749465 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 275074942 + ... + 275074951.

It is an arithmetic number, because the mean of its divisors is an integer number (825224841).

Almost surely, 2^2750749465 is an apocalyptic number.

It is an amenable number.

2750749465 is a deficient number, since it is larger than the sum of its proper divisors (550149899).

2750749465 is an equidigital number, since it uses as much as digits as its factorization.

2750749465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550149898.

The product of its (nonzero) digits is 2116800, while the sum is 49.

The square root of 2750749465 is about 52447.5877900976. The cubic root of 2750749465 is about 1401.1469283374.

The spelling of 2750749465 in words is "two billion, seven hundred fifty million, seven hundred forty-nine thousand, four hundred sixty-five".