8137319747 has 2 divisors, whose sum is σ = 8137319748. Its totient is φ = 8137319746.

The previous prime is 8137319737. The next prime is 8137319777. The reversal of 8137319747 is 7479137318.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8137319747 - 2¹² = 8137315651 is a prime.

It is a super-2 number, since 2×8137319747² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8137319695 and 8137319704.

It is not a weakly prime, because it can be changed into another prime (8137319737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4068659873 + 4068659874.

It is an arithmetic number, because the mean of its divisors is an integer number (4068659874).

Almost surely, 2^8137319747 is an apocalyptic number.

8137319747 is a deficient number, since it is larger than the sum of its proper divisors (1).

8137319747 is an equidigital number, since it uses as much as digits as its factorization.

8137319747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 50.

The square root of 8137319747 is about 90207.0936623057. The cubic root of 8137319747 is about 2011.3784548691.

The spelling of 8137319747 in words is "eight billion, one hundred thirty-seven million, three hundred nineteen thousand, seven hundred forty-seven".