5424188981 has 2 divisors, whose sum is σ = 5424188982. Its totient is φ = 5424188980.

The previous prime is 5424188977. The next prime is 5424189037. The reversal of 5424188981 is 1898814245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4194634756 + 1229554225 = 64766^2 + 35065^2 .

It is a cyclic number.

It is not a de Polignac number, because 5424188981 - 2² = 5424188977 is a prime.

It is a super-2 number, since 2×5424188981² = 58843652203203636722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5424188921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2712094490 + 2712094491.

It is an arithmetic number, because the mean of its divisors is an integer number (2712094491).

Almost surely, 2^5424188981 is an apocalyptic number.

It is an amenable number.

5424188981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5424188981 is an equidigital number, since it uses as much as digits as its factorization.

5424188981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 737280, while the sum is 50.

The square root of 5424188981 is about 73649.0935517879. The cubic root of 5424188981 is about 1757.0263341403.

The spelling of 5424188981 in words is "five billion, four hundred twenty-four million, one hundred eighty-eight thousand, nine hundred eighty-one".