78963957707 has 2 divisors, whose sum is σ = 78963957708. Its totient is φ = 78963957706.

The previous prime is 78963957623. The next prime is 78963957731. The reversal of 78963957707 is 70775936987.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78963957707 - 2²² = 78959763403 is a prime.

It is not a weakly prime, because it can be changed into another prime (78963957907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39481978853 + 39481978854.

It is an arithmetic number, because the mean of its divisors is an integer number (39481978854).

Almost surely, 2^78963957707 is an apocalyptic number.

78963957707 is a deficient number, since it is larger than the sum of its proper divisors (1).

78963957707 is an equidigital number, since it uses as much as digits as its factorization.

78963957707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140026320, while the sum is 68.

The spelling of 78963957707 in words is "seventy-eight billion, nine hundred sixty-three million, nine hundred fifty-seven thousand, seven hundred seven".