5358947861 has 2 divisors, whose sum is σ = 5358947862. Its totient is φ = 5358947860.

The previous prime is 5358947843. The next prime is 5358947863. The reversal of 5358947861 is 1687498535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3179832100 + 2179115761 = 56390^2 + 46681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5358947861 is a prime.

Together with 5358947863, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5358947797 and 5358947806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5358947863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2679473930 + 2679473931.

It is an arithmetic number, because the mean of its divisors is an integer number (2679473931).

Almost surely, 2^5358947861 is an apocalyptic number.

It is an amenable number.

5358947861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5358947861 is an equidigital number, since it uses as much as digits as its factorization.

5358947861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 56.

The square root of 5358947861 is about 73204.8349564426. The cubic root of 5358947861 is about 1749.9535074451.

The spelling of 5358947861 in words is "five billion, three hundred fifty-eight million, nine hundred forty-seven thousand, eight hundred sixty-one".