78885412087253 has 2 divisors, whose sum is σ = 78885412087254. Its totient is φ = 78885412087252.

The previous prime is 78885412087217. The next prime is 78885412087303. The reversal of 78885412087253 is 35278021458887.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51860406807889 + 27025005279364 = 7201417^2 + 5198558^2 .

It is a cyclic number.

It is not a de Polignac number, because 78885412087253 - 2³⁶ = 78816692610517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78885412017253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39442706043626 + 39442706043627.

It is an arithmetic number, because the mean of its divisors is an integer number (39442706043627).

Almost surely, 2^{78885412087253} is an apocalyptic number.

It is an amenable number.

78885412087253 is a deficient number, since it is larger than the sum of its proper divisors (1).

78885412087253 is an equidigital number, since it uses as much as digits as its factorization.

78885412087253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240844800, while the sum is 68.

The spelling of 78885412087253 in words is "seventy-eight trillion, eight hundred eighty-five billion, four hundred twelve million, eighty-seven thousand, two hundred fifty-three".