2794691223289 has 45 divisors (see below), whose sum is σ = 3301010579853. Its totient is φ = 2365890037056.

The previous prime is 2794691223263. The next prime is 2794691223319. The reversal of 2794691223289 is 9823221964972.

The square root of 2794691223289 is 1671733.

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

It can be written as a sum of positive squares in 4 ways, for example, as 649321698025 + 2145369525264 = 805805^2 + 1464708^2 .

It is not a de Polignac number, because 2794691223289 - 2²³ = 2794682834681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2794691223289.

It is not an unprimeable number, because it can be changed into a prime (2794691223089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 8928725797 + ... + 8928726109.

Almost surely, 2^{2794691223289} is an apocalyptic number.

2794691223289 is the 1671733-rd square number.

2794691223289 is the 835867-th centered octagonal number.

It is an amenable number.

2794691223289 is a deficient number, since it is larger than the sum of its proper divisors (506319356564).

2794691223289 is an frugal number, since it uses more digits than its factorization.

2794691223289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 429 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 64.

Multiplying 2794691223289 by its sum of digits (64), we get a square (178860238290496 = 13373864²).

The spelling of 2794691223289 in words is "two trillion, seven hundred ninety-four billion, six hundred ninety-one million, two hundred twenty-three thousand, two hundred eighty-nine".