2544978134749 has 8 divisors (see below), whose sum is σ = 2574843223680. Its totient is φ = 2515141264416.

The previous prime is 2544978134717. The next prime is 2544978134779. The reversal of 2544978134749 is 9474318794452.

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 2544978134749 - 2⁵ = 2544978134717 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 (2544978134779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6873189 + ... + 7233994.

It is an arithmetic number, because the mean of its divisors is an integer number (321855402960).

Almost surely, 2^{2544978134749} is an apocalyptic number.

It is an amenable number.

2544978134749 is a deficient number, since it is larger than the sum of its proper divisors (29865088931).

2544978134749 is a wasteful number, since it uses less digits than its factorization.

2544978134749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14109299.

The product of its digits is 243855360, while the sum is 67.

The spelling of 2544978134749 in words is "two trillion, five hundred forty-four billion, nine hundred seventy-eight million, one hundred thirty-four thousand, seven hundred forty-nine".