49543546643 has 2 divisors, whose sum is σ = 49543546644. Its totient is φ = 49543546642.

The previous prime is 49543546639. The next prime is 49543546651. The reversal of 49543546643 is 34664534594.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49543546643 - 2² = 49543546639 is a prime.

It is not a weakly prime, because it can be changed into another prime (49543546673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24771773321 + 24771773322.

It is an arithmetic number, because the mean of its divisors is an integer number (24771773322).

Almost surely, 2^49543546643 is an apocalyptic number.

49543546643 is a deficient number, since it is larger than the sum of its proper divisors (1).

49543546643 is an equidigital number, since it uses as much as digits as its factorization.

49543546643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18662400, while the sum is 53.

The spelling of 49543546643 in words is "forty-nine billion, five hundred forty-three million, five hundred forty-six thousand, six hundred forty-three".