7116412981 has 2 divisors, whose sum is σ = 7116412982. Its totient is φ = 7116412980.

The previous prime is 7116412967. The next prime is 7116412997. The reversal of 7116412981 is 1892146117.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3999424081 + 3116988900 = 63241^2 + 55830^2 .

It is a cyclic number.

It is not a de Polignac number, because 7116412981 - 2⁵ = 7116412949 is a prime.

It is a super-2 number, since 2×7116412981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7116412951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3558206490 + 3558206491.

It is an arithmetic number, because the mean of its divisors is an integer number (3558206491).

Almost surely, 2^7116412981 is an apocalyptic number.

It is an amenable number.

7116412981 is a deficient number, since it is larger than the sum of its proper divisors (1).

7116412981 is an equidigital number, since it uses as much as digits as its factorization.

7116412981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 40.

The square root of 7116412981 is about 84358.8346351465. The cubic root of 7116412981 is about 1923.4772220752.

The spelling of 7116412981 in words is "seven billion, one hundred sixteen million, four hundred twelve thousand, nine hundred eighty-one".