78102211063 has 2 divisors, whose sum is σ = 78102211064. Its totient is φ = 78102211062.

The previous prime is 78102211009. The next prime is 78102211067. The reversal of 78102211063 is 36011220187.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78102211063 - 2²¹ = 78100113911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78102211067) 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, 39051105531 + 39051105532.

It is an arithmetic number, because the mean of its divisors is an integer number (39051105532).

Almost surely, 2^78102211063 is an apocalyptic number.

78102211063 is a deficient number, since it is larger than the sum of its proper divisors (1).

78102211063 is an equidigital number, since it uses as much as digits as its factorization.

78102211063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 78102211063 in words is "seventy-eight billion, one hundred two million, two hundred eleven thousand, sixty-three".