2499643544446 has 16 divisors (see below), whose sum is σ = 3756849533568. Its totient is φ = 1247360925600.

The previous prime is 2499643544441. The next prime is 2499643544491. The reversal of 2499643544446 is 6444453469942.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2499643544441) 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, 9108316 + ... + 9378736.

It is an arithmetic number, because the mean of its divisors is an integer number (234803095848).

Almost surely, 2^{2499643544446} is an apocalyptic number.

2499643544446 is a deficient number, since it is larger than the sum of its proper divisors (1257205989122).

2499643544446 is a wasteful number, since it uses less digits than its factorization.

2499643544446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279507.

The product of its digits is 358318080, while the sum is 64.

The spelling of 2499643544446 in words is "two trillion, four hundred ninety-nine billion, six hundred forty-three million, five hundred forty-four thousand, four hundred forty-six".