2750661473 has 4 divisors (see below), whose sum is σ = 3143613120. Its totient is φ = 2357709828.

The previous prime is 2750661467. The next prime is 2750661499. The reversal of 2750661473 is 3741660572.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2750661473 - 2¹⁴ = 2750645089 is a prime.

It is a super-2 number, since 2×2750661473² = 15132277078093059458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2750661473.

It is not an unprimeable number, because it can be changed into a prime (2750661443) 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 3 ways as a sum of consecutive naturals, for example, 196475813 + ... + 196475826.

It is an arithmetic number, because the mean of its divisors is an integer number (785903280).

Almost surely, 2^2750661473 is an apocalyptic number.

It is an amenable number.

2750661473 is a deficient number, since it is larger than the sum of its proper divisors (392951647).

2750661473 is an equidigital number, since it uses as much as digits as its factorization.

2750661473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392951646.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 2750661473 is about 52446.7489268877. The cubic root of 2750661473 is about 1401.1319880412.

Subtracting 2750661473 from its reverse (3741660572), we obtain a palindrome (990999099).

The spelling of 2750661473 in words is "two billion, seven hundred fifty million, six hundred sixty-one thousand, four hundred seventy-three".