7716148081 has 2 divisors, whose sum is σ = 7716148082. Its totient is φ = 7716148080.

The previous prime is 7716148079. The next prime is 7716148087. The reversal of 7716148081 is 1808416177.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4902800400 + 2813347681 = 70020^2 + 53041^2 .

It is a cyclic number.

It is not a de Polignac number, because 7716148081 - 2¹ = 7716148079 is a prime.

It is a super-2 number, since 2×7716148081² (a number of 21 digits) contains 22 as substring.

Together with 7716148079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7716148087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3858074040 + 3858074041.

It is an arithmetic number, because the mean of its divisors is an integer number (3858074041).

Almost surely, 2^7716148081 is an apocalyptic number.

It is an amenable number.

7716148081 is a deficient number, since it is larger than the sum of its proper divisors (1).

7716148081 is an equidigital number, since it uses as much as digits as its factorization.

7716148081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 43.

The square root of 7716148081 is about 87841.6079144730. The cubic root of 7716148081 is about 1976.0602612143.

The spelling of 7716148081 in words is "seven billion, seven hundred sixteen million, one hundred forty-eight thousand, eighty-one".