5543748989 has 2 divisors, whose sum is σ = 5543748990. Its totient is φ = 5543748988.

The previous prime is 5543748983. The next prime is 5543749007. The reversal of 5543748989 is 9898473455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3513525625 + 2030223364 = 59275^2 + 45058^2 .

It is a cyclic number.

It is not a de Polignac number, because 5543748989 - 2⁸ = 5543748733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5543748983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2771874494 + 2771874495.

It is an arithmetic number, because the mean of its divisors is an integer number (2771874495).

Almost surely, 2^5543748989 is an apocalyptic number.

It is an amenable number.

5543748989 is a deficient number, since it is larger than the sum of its proper divisors (1).

5543748989 is an equidigital number, since it uses as much as digits as its factorization.

5543748989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43545600, while the sum is 62.

The square root of 5543748989 is about 74456.3562699653. The cubic root of 5543748989 is about 1769.8420905654.

The spelling of 5543748989 in words is "five billion, five hundred forty-three million, seven hundred forty-eight thousand, nine hundred eighty-nine".