78964000481 has 2 divisors, whose sum is σ = 78964000482. Its totient is φ = 78964000480.

The previous prime is 78964000477. The next prime is 78964000561. The reversal of 78964000481 is 18400046987.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48728355025 + 30235645456 = 220745^2 + 173884^2 .

It is a cyclic number.

It is not a de Polignac number, because 78964000481 - 2² = 78964000477 is a prime.

It is a super-2 number, since 2×78964000481² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a weakly prime.

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, 39482000240 + 39482000241.

It is an arithmetic number, because the mean of its divisors is an integer number (39482000241).

Almost surely, 2^78964000481 is an apocalyptic number.

It is an amenable number.

78964000481 is a deficient number, since it is larger than the sum of its proper divisors (1).

78964000481 is an equidigital number, since it uses as much as digits as its factorization.

78964000481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 78964000481 in words is "seventy-eight billion, nine hundred sixty-four million, four hundred eighty-one", and thus it is an aban number.