2549763709109 has 8 divisors (see below), whose sum is σ = 2637741860760. Its totient is φ = 2461789241856.

The previous prime is 2549763709091. The next prime is 2549763709147. The reversal of 2549763709109 is 9019073679452.

It can be written as a sum of positive squares in 4 ways, for example, as 609445648900 + 1940318060209 = 780670^2 + 1392953^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2549763709109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2549763709159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525389 + ... + 2318525.

It is an arithmetic number, because the mean of its divisors is an integer number (329717732595).

Almost surely, 2^{2549763709109} is an apocalyptic number.

2549763709109 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2549763709109 is a deficient number, since it is larger than the sum of its proper divisors (87978151651).

2549763709109 is a wasteful number, since it uses less digits than its factorization.

2549763709109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842199.

The product of its (nonzero) digits is 25719120, while the sum is 62.

The spelling of 2549763709109 in words is "two trillion, five hundred forty-nine billion, seven hundred sixty-three million, seven hundred nine thousand, one hundred nine".