7770040716643 has 2 divisors, whose sum is σ = 7770040716644. Its totient is φ = 7770040716642.

The previous prime is 7770040716593. The next prime is 7770040716701. The reversal of 7770040716643 is 3466170400777.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7770040716643 - 2⁹ = 7770040716131 is a prime.

It is not a weakly prime, because it can be changed into another prime (7770041716643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3885020358321 + 3885020358322.

It is an arithmetic number, because the mean of its divisors is an integer number (3885020358322).

Almost surely, 2^{7770040716643} is an apocalyptic number.

7770040716643 is a deficient number, since it is larger than the sum of its proper divisors (1).

7770040716643 is an equidigital number, since it uses as much as digits as its factorization.

7770040716643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4148928, while the sum is 52.

The spelling of 7770040716643 in words is "seven trillion, seven hundred seventy billion, forty million, seven hundred sixteen thousand, six hundred forty-three".