7872069017 has 2 divisors, whose sum is σ = 7872069018. Its totient is φ = 7872069016.

The previous prime is 7872069013. The next prime is 7872069031. The reversal of 7872069017 is 7109602787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3961317721 + 3910751296 = 62939^2 + 62536^2 .

It is a cyclic number.

It is not a de Polignac number, because 7872069017 - 2² = 7872069013 is a prime.

It is a super-2 number, since 2×7872069017² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7872069013) 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, 3936034508 + 3936034509.

It is an arithmetic number, because the mean of its divisors is an integer number (3936034509).

Almost surely, 2^7872069017 is an apocalyptic number.

It is an amenable number.

7872069017 is a deficient number, since it is larger than the sum of its proper divisors (1).

7872069017 is an equidigital number, since it uses as much as digits as its factorization.

7872069017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 47.

The square root of 7872069017 is about 88724.6809912552. The cubic root of 7872069017 is about 1989.2817468853.

The spelling of 7872069017 in words is "seven billion, eight hundred seventy-two million, sixty-nine thousand, seventeen".