2757934454209 has 27 divisors (see below), whose sum is σ = 3104471139777. Its totient is φ = 2448208362600.

The previous prime is 2757934454201. The next prime is 2757934454227. The reversal of 2757934454209 is 9024544397572.

The square root of 2757934454209 is 1660703.

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

It is not a de Polignac number, because 2757934454209 - 2³ = 2757934454201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2757934454201) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 785510764 + ... + 785514274.

Almost surely, 2^{2757934454209} is an apocalyptic number.

2757934454209 is the 1660703-rd square number.

2757934454209 is the 830352-nd centered octagonal number.

It is an amenable number.

2757934454209 is a deficient number, since it is larger than the sum of its proper divisors (346536685568).

2757934454209 is an frugal number, since it uses more digits than its factorization.

2757934454209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7130 (or 3565 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 61.

The spelling of 2757934454209 in words is "two trillion, seven hundred fifty-seven billion, nine hundred thirty-four million, four hundred fifty-four thousand, two hundred nine".