77998002029 has 2 divisors, whose sum is σ = 77998002030. Its totient is φ = 77998002028.

The previous prime is 77998001993. The next prime is 77998002037. The reversal of 77998002029 is 92020089977.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77977770025 + 20232004 = 279245^2 + 4498^2 .

It is an emirp because it is prime and its reverse (92020089977) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77998002029 - 2⁸ = 77998001773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77998002079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38999001014 + 38999001015.

It is an arithmetic number, because the mean of its divisors is an integer number (38999001015).

Almost surely, 2^77998002029 is an apocalyptic number.

It is an amenable number.

77998002029 is a deficient number, since it is larger than the sum of its proper divisors (1).

77998002029 is an equidigital number, since it uses as much as digits as its factorization.

77998002029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The spelling of 77998002029 in words is "seventy-seven billion, nine hundred ninety-eight million, two thousand, twenty-nine".