78907118443 has 2 divisors, whose sum is σ = 78907118444. Its totient is φ = 78907118442.

The previous prime is 78907118399. The next prime is 78907118473. The reversal of 78907118443 is 34481170987.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78907118443 is a prime.

It is not a weakly prime, because it can be changed into another prime (78907118473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39453559221 + 39453559222.

It is an arithmetic number, because the mean of its divisors is an integer number (39453559222).

Almost surely, 2^78907118443 is an apocalyptic number.

78907118443 is a deficient number, since it is larger than the sum of its proper divisors (1).

78907118443 is an equidigital number, since it uses as much as digits as its factorization.

78907118443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 78907118443 in words is "seventy-eight billion, nine hundred seven million, one hundred eighteen thousand, four hundred forty-three".