6761347157 has 2 divisors, whose sum is σ = 6761347158. Its totient is φ = 6761347156.

The previous prime is 6761347121. The next prime is 6761347169. The reversal of 6761347157 is 7517431676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3539536036 + 3221811121 = 59494^2 + 56761^2 .

It is a cyclic number.

It is not a de Polignac number, because 6761347157 - 2⁸ = 6761346901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6761347357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3380673578 + 3380673579.

It is an arithmetic number, because the mean of its divisors is an integer number (3380673579).

Almost surely, 2^6761347157 is an apocalyptic number.

It is an amenable number.

6761347157 is a deficient number, since it is larger than the sum of its proper divisors (1).

6761347157 is an equidigital number, since it uses as much as digits as its factorization.

6761347157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 740880, while the sum is 47.

The square root of 6761347157 is about 82227.4112264274. The cubic root of 6761347157 is about 1890.9399836074.

The spelling of 6761347157 in words is "six billion, seven hundred sixty-one million, three hundred forty-seven thousand, one hundred fifty-seven".