2750645469049 has 9 divisors (see below), whose sum is σ = 2875478335023. Its totient is φ = 2631015700632.

The previous prime is 2750645469043. The next prime is 2750645469071. The reversal of 2750645469049 is 9409645460572.

The square root of 2750645469049 is 1658507.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1653556812649 + 1097088656400 = 1285907^2 + 1047420^2 .

It is not a de Polignac number, because 2750645469049 - 2³ = 2750645469041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2750645469041) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 38109607 + ... + 38181715.

Almost surely, 2^{2750645469049} is an apocalyptic number.

2750645469049 is the 1658507-th square number.

2750645469049 is the 829254-th centered octagonal number.

It is an amenable number.

2750645469049 is a deficient number, since it is larger than the sum of its proper divisors (124832865974).

2750645469049 is an frugal number, since it uses more digits than its factorization.

2750645469049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144264 (or 72132 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 61.

The spelling of 2750645469049 in words is "two trillion, seven hundred fifty billion, six hundred forty-five million, four hundred sixty-nine thousand, forty-nine".