5321018749 has 2 divisors, whose sum is σ = 5321018750. Its totient is φ = 5321018748.

The previous prime is 5321018657. The next prime is 5321018779. The reversal of 5321018749 is 9478101235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3980726649 + 1340292100 = 63093^2 + 36610^2 .

It is a cyclic number.

It is not a de Polignac number, because 5321018749 - 2²⁷ = 5186801021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5321018779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2660509374 + 2660509375.

It is an arithmetic number, because the mean of its divisors is an integer number (2660509375).

Almost surely, 2^5321018749 is an apocalyptic number.

It is an amenable number.

5321018749 is a deficient number, since it is larger than the sum of its proper divisors (1).

5321018749 is an equidigital number, since it uses as much as digits as its factorization.

5321018749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 5321018749 is about 72945.3134135429. The cubic root of 5321018749 is about 1745.8151706236.

The spelling of 5321018749 in words is "five billion, three hundred twenty-one million, eighteen thousand, seven hundred forty-nine".