5351638993 has 2 divisors, whose sum is σ = 5351638994. Its totient is φ = 5351638992.

The previous prime is 5351638961. The next prime is 5351639023. The reversal of 5351638993 is 3998361535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2951422929 + 2400216064 = 54327^2 + 48992^2 .

It is a cyclic number.

It is not a de Polignac number, because 5351638993 - 2⁵ = 5351638961 is a prime.

It is a super-2 number, since 2×5351638993² = 57280079822796108098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5351638993.

It is not a weakly prime, because it can be changed into another prime (5351638093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2675819496 + 2675819497.

It is an arithmetic number, because the mean of its divisors is an integer number (2675819497).

Almost surely, 2^5351638993 is an apocalyptic number.

It is an amenable number.

5351638993 is a deficient number, since it is larger than the sum of its proper divisors (1).

5351638993 is an equidigital number, since it uses as much as digits as its factorization.

5351638993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2624400, while the sum is 52.

The square root of 5351638993 is about 73154.8972591719. The cubic root of 5351638993 is about 1749.1575801713.

The spelling of 5351638993 in words is "five billion, three hundred fifty-one million, six hundred thirty-eight thousand, nine hundred ninety-three".