78833917601 has 2 divisors, whose sum is σ = 78833917602. Its totient is φ = 78833917600.

The previous prime is 78833917597. The next prime is 78833917609. The reversal of 78833917601 is 10671933887.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68224917601 + 10609000000 = 261199^2 + 103000^2 .

It is a cyclic number.

It is not a de Polignac number, because 78833917601 - 2² = 78833917597 is a prime.

It is not a weakly prime, because it can be changed into another prime (78833917609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39416958800 + 39416958801.

It is an arithmetic number, because the mean of its divisors is an integer number (39416958801).

Almost surely, 2^78833917601 is an apocalyptic number.

It is an amenable number.

78833917601 is a deficient number, since it is larger than the sum of its proper divisors (1).

78833917601 is an equidigital number, since it uses as much as digits as its factorization.

78833917601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 78833917601 in words is "seventy-eight billion, eight hundred thirty-three million, nine hundred seventeen thousand, six hundred one".