5111450989 has 2 divisors, whose sum is σ = 5111450990. Its totient is φ = 5111450988.

The previous prime is 5111450983. The next prime is 5111451043. The reversal of 5111450989 is 9890541115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4817054025 + 294396964 = 69405^2 + 17158^2 .

It is a cyclic number.

It is not a de Polignac number, because 5111450989 - 2¹¹ = 5111448941 is a prime.

It is a super-2 number, since 2×5111450989² = 52253862425898156242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5111450983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555725494 + 2555725495.

It is an arithmetic number, because the mean of its divisors is an integer number (2555725495).

Almost surely, 2^5111450989 is an apocalyptic number.

It is an amenable number.

5111450989 is a deficient number, since it is larger than the sum of its proper divisors (1).

5111450989 is an equidigital number, since it uses as much as digits as its factorization.

5111450989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 43.

The square root of 5111450989 is about 71494.4122921505. The cubic root of 5111450989 is about 1722.5879318920.

The spelling of 5111450989 in words is "five billion, one hundred eleven million, four hundred fifty thousand, nine hundred eighty-nine".