2544978749623 has 8 divisors (see below), whose sum is σ = 2558432230560. Its totient is φ = 2531560627200.

The previous prime is 2544978749597. The next prime is 2544978749683. The reversal of 2544978749623 is 3269478794452.

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 2544978749623 - 2¹⁷ = 2544978618551 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 (2544978749683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8695290 + ... + 8983207.

It is an arithmetic number, because the mean of its divisors is an integer number (319804028820).

Almost surely, 2^{2544978749623} is an apocalyptic number.

2544978749623 is a deficient number, since it is larger than the sum of its proper divisors (13453480937).

2544978749623 is a wasteful number, since it uses less digits than its factorization.

2544978749623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17679257.

The product of its digits is 731566080, while the sum is 70.

The spelling of 2544978749623 in words is "two trillion, five hundred forty-four billion, nine hundred seventy-eight million, seven hundred forty-nine thousand, six hundred twenty-three".