5381347261 has 2 divisors, whose sum is σ = 5381347262. Its totient is φ = 5381347260.

The previous prime is 5381347249. The next prime is 5381347277. The reversal of 5381347261 is 1627431835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4693072036 + 688275225 = 68506^2 + 26235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5381347261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5381347241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2690673630 + 2690673631.

It is an arithmetic number, because the mean of its divisors is an integer number (2690673631).

Almost surely, 2^5381347261 is an apocalyptic number.

It is an amenable number.

5381347261 is a deficient number, since it is larger than the sum of its proper divisors (1).

5381347261 is an equidigital number, since it uses as much as digits as its factorization.

5381347261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 5381347261 is about 73357.6666818132. Note that the first 4 decimals coincide. The cubic root of 5381347261 is about 1752.3882777748.

The spelling of 5381347261 in words is "five billion, three hundred eighty-one million, three hundred forty-seven thousand, two hundred sixty-one".