94979897849 has 2 divisors, whose sum is σ = 94979897850. Its totient is φ = 94979897848.

The previous prime is 94979897833. The next prime is 94979897851. The reversal of 94979897849 is 94879897949.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65315002624 + 29664895225 = 255568^2 + 172235^2 .

It is an emirp because it is prime and its reverse (94879897949) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 94979897849 - 2⁴ = 94979897833 is a prime.

It is a Sophie Germain prime.

Together with 94979897851, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (94979897899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47489948924 + 47489948925.

It is an arithmetic number, because the mean of its divisors is an integer number (47489948925).

Almost surely, 2^94979897849 is an apocalyptic number.

It is an amenable number.

94979897849 is a deficient number, since it is larger than the sum of its proper divisors (1).

94979897849 is an equidigital number, since it uses as much as digits as its factorization.

94979897849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2962842624, while the sum is 83.

The spelling of 94979897849 in words is "ninety-four billion, nine hundred seventy-nine million, eight hundred ninety-seven thousand, eight hundred forty-nine".