78502070655233 has 2 divisors, whose sum is σ = 78502070655234. Its totient is φ = 78502070655232.

The previous prime is 78502070655223. The next prime is 78502070655419. The reversal of 78502070655233 is 33255607020587.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76665224433424 + 1836846221809 = 8755868^2 + 1355303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78502070655233 is a prime.

It is not a weakly prime, because it can be changed into another prime (78502070655223) 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, 39251035327616 + 39251035327617.

It is an arithmetic number, because the mean of its divisors is an integer number (39251035327617).

Almost surely, 2^{78502070655233} is an apocalyptic number.

It is an amenable number.

78502070655233 is a deficient number, since it is larger than the sum of its proper divisors (1).

78502070655233 is an equidigital number, since it uses as much as digits as its factorization.

78502070655233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584000, while the sum is 53.

The spelling of 78502070655233 in words is "seventy-eight trillion, five hundred two billion, seventy million, six hundred fifty-five thousand, two hundred thirty-three".