7077985913 has 2 divisors, whose sum is σ = 7077985914. Its totient is φ = 7077985912.

The previous prime is 7077985909. The next prime is 7077985931. The reversal of 7077985913 is 3195897707.

Together with next prime (7077985931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6777899584 + 300086329 = 82328^2 + 17323^2 .

It is a cyclic number.

It is not a de Polignac number, because 7077985913 - 2² = 7077985909 is a prime.

It is not a weakly prime, because it can be changed into another prime (7077982913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3538992956 + 3538992957.

It is an arithmetic number, because the mean of its divisors is an integer number (3538992957).

Almost surely, 2^7077985913 is an apocalyptic number.

It is an amenable number.

7077985913 is a deficient number, since it is larger than the sum of its proper divisors (1).

7077985913 is an equidigital number, since it uses as much as digits as its factorization.

7077985913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3333960, while the sum is 56.

The square root of 7077985913 is about 84130.7667443962. The cubic root of 7077985913 is about 1920.0088534929.

The spelling of 7077985913 in words is "seven billion, seventy-seven million, nine hundred eighty-five thousand, nine hundred thirteen".