7863460681 has 2 divisors, whose sum is σ = 7863460682. Its totient is φ = 7863460680.

The previous prime is 7863460663. The next prime is 7863460691. The reversal of 7863460681 is 1860643687.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7657825081 + 205635600 = 87509^2 + 14340^2 .

It is a cyclic number.

It is not a de Polignac number, because 7863460681 - 2¹⁷ = 7863329609 is a prime.

It is a super-2 number, since 2×7863460681² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7863460691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3931730340 + 3931730341.

It is an arithmetic number, because the mean of its divisors is an integer number (3931730341).

Almost surely, 2^7863460681 is an apocalyptic number.

It is an amenable number.

7863460681 is a deficient number, since it is larger than the sum of its proper divisors (1).

7863460681 is an equidigital number, since it uses as much as digits as its factorization.

7863460681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 7863460681 is about 88676.1562146218. The cubic root of 7863460681 is about 1988.5563699675.

The spelling of 7863460681 in words is "seven billion, eight hundred sixty-three million, four hundred sixty thousand, six hundred eighty-one".