2749252260481 has 8 divisors (see below), whose sum is σ = 2759148481320. Its totient is φ = 2739359530752.

The previous prime is 2749252260389. The next prime is 2749252260539. The reversal of 2749252260481 is 1840622529472.

It can be written as a sum of positive squares in 4 ways, for example, as 2150795300481 + 598456960000 = 1466559^2 + 773600^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2749252260481 - 2¹¹ = 2749252258433 is a prime.

It is a super-2 number, since 2×2749252260481² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2749252264481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710215 + ... + 2450083.

It is an arithmetic number, because the mean of its divisors is an integer number (344893560165).

Almost surely, 2^{2749252260481} is an apocalyptic number.

It is an amenable number.

2749252260481 is a deficient number, since it is larger than the sum of its proper divisors (9896220839).

2749252260481 is a wasteful number, since it uses less digits than its factorization.

2749252260481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745555.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 2749252260481 in words is "two trillion, seven hundred forty-nine billion, two hundred fifty-two million, two hundred sixty thousand, four hundred eighty-one".