5030781989 has 6 divisors (see below), whose sum is σ = 5204652390. Its totient is φ = 4856937960.

The previous prime is 5030781961. The next prime is 5030782013. The reversal of 5030781989 is 9891870305.

It can be written as a sum of positive squares in only one way, i.e., 4336881025 + 693900964 = 65855^2 + 26342^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5030781989 is a prime.

It is a super-2 number, since 2×5030781989² = 50617534841693592242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5030781089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 375374 + ... + 388544.

It is an arithmetic number, because the mean of its divisors is an integer number (867442065).

Almost surely, 2^5030781989 is an apocalyptic number.

It is an amenable number.

5030781989 is a deficient number, since it is larger than the sum of its proper divisors (173870401).

5030781989 is an frugal number, since it uses more digits than its factorization.

5030781989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26371 (or 13200 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 50.

The square root of 5030781989 is about 70928.0056747686. The cubic root of 5030781989 is about 1713.4778674578.

The spelling of 5030781989 in words is "five billion, thirty million, seven hundred eighty-one thousand, nine hundred eighty-nine".