78796089907 has 2 divisors, whose sum is σ = 78796089908. Its totient is φ = 78796089906.

The previous prime is 78796089871. The next prime is 78796089971. The reversal of 78796089907 is 70998069787.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78796089907 - 2¹⁹ = 78795565619 is a prime.

It is not a weakly prime, because it can be changed into another prime (78796089997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39398044953 + 39398044954.

It is an arithmetic number, because the mean of its divisors is an integer number (39398044954).

Almost surely, 2^78796089907 is an apocalyptic number.

78796089907 is a deficient number, since it is larger than the sum of its proper divisors (1).

78796089907 is an equidigital number, since it uses as much as digits as its factorization.

78796089907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96018048, while the sum is 70.

The spelling of 78796089907 in words is "seventy-eight billion, seven hundred ninety-six million, eighty-nine thousand, nine hundred seven".