94408778939 has 2 divisors, whose sum is σ = 94408778940. Its totient is φ = 94408778938.

The previous prime is 94408778921. The next prime is 94408778987. The reversal of 94408778939 is 93987780449.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 94408778939 - 2²⁰ = 94407730363 is a prime.

It is not a weakly prime, because it can be changed into another prime (94408778999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47204389469 + 47204389470.

It is an arithmetic number, because the mean of its divisors is an integer number (47204389470).

Almost surely, 2^94408778939 is an apocalyptic number.

94408778939 is a deficient number, since it is larger than the sum of its proper divisors (1).

94408778939 is an equidigital number, since it uses as much as digits as its factorization.

94408778939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 109734912, while the sum is 68.

The spelling of 94408778939 in words is "ninety-four billion, four hundred eight million, seven hundred seventy-eight thousand, nine hundred thirty-nine".