2543205411044 has 6 divisors (see below), whose sum is σ = 4450609469334. Its totient is φ = 1271602705520.

The previous prime is 2543205411007. The next prime is 2543205411059. The reversal of 2543205411044 is 4401145023452.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2398508858944 + 144696552100 = 1548712^2 + 380390^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2543205410995 and 2543205411013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317900676377 + ... + 317900676384.

It is an arithmetic number, because the mean of its divisors is an integer number (741768244889).

Almost surely, 2^{2543205411044} is an apocalyptic number.

It is an amenable number.

2543205411044 is a deficient number, since it is larger than the sum of its proper divisors (1907404058290).

2543205411044 is a wasteful number, since it uses less digits than its factorization.

2543205411044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635801352765 (or 635801352763 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

The spelling of 2543205411044 in words is "two trillion, five hundred forty-three billion, two hundred five million, four hundred eleven thousand, forty-four".