2544198947797 has 16 divisors (see below), whose sum is σ = 2755626108480. Its totient is φ = 2335021372800.

The previous prime is 2544198947791. The next prime is 2544198947809. The reversal of 2544198947797 is 7977498914452.

It is a cyclic number.

It is not a de Polignac number, because 2544198947797 - 2³ = 2544198947789 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 (2544198947791) 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 15 ways as a sum of consecutive naturals, for example, 16143097 + ... + 16299937.

It is an arithmetic number, because the mean of its divisors is an integer number (172226631780).

Almost surely, 2^{2544198947797} is an apocalyptic number.

It is an amenable number.

2544198947797 is a deficient number, since it is larger than the sum of its proper divisors (211427160683).

2544198947797 is a wasteful number, since it uses less digits than its factorization.

2544198947797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164004.

The product of its digits is 1280240640, while the sum is 76.

The spelling of 2544198947797 in words is "two trillion, five hundred forty-four billion, one hundred ninety-eight million, nine hundred forty-seven thousand, seven hundred ninety-seven".