94478787797 has 2 divisors, whose sum is σ = 94478787798. Its totient is φ = 94478787796.

The previous prime is 94478787779. The next prime is 94478787911. The reversal of 94478787797 is 79778787449.

Together with previous prime (94478787779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61844726596 + 32634061201 = 248686^2 + 180649^2 .

It is a cyclic number.

It is not a de Polignac number, because 94478787797 - 2⁸ = 94478787541 is a prime.

It is a super-2 number, since 2×94478787797² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94478787727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47239393898 + 47239393899.

It is an arithmetic number, because the mean of its divisors is an integer number (47239393899).

Almost surely, 2^94478787797 is an apocalyptic number.

It is an amenable number.

94478787797 is a deficient number, since it is larger than the sum of its proper divisors (1).

94478787797 is an equidigital number, since it uses as much as digits as its factorization.

94478787797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1394039808, while the sum is 77.

The spelling of 94478787797 in words is "ninety-four billion, four hundred seventy-eight million, seven hundred eighty-seven thousand, seven hundred ninety-seven".