78112101969233 has 2 divisors, whose sum is σ = 78112101969234. Its totient is φ = 78112101969232.

The previous prime is 78112101969163. The next prime is 78112101969271. The reversal of 78112101969233 is 33296910121187.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42603517416769 + 35508584552464 = 6527137^2 + 5958908^2 .

It is a cyclic number.

It is not a de Polignac number, because 78112101969233 - 2²⁴ = 78112085192017 is a prime.

It is a super-2 number, since 2×78112101969233² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78112101966233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39056050984616 + 39056050984617.

It is an arithmetic number, because the mean of its divisors is an integer number (39056050984617).

Almost surely, 2^{78112101969233} is an apocalyptic number.

It is an amenable number.

78112101969233 is a deficient number, since it is larger than the sum of its proper divisors (1).

78112101969233 is an equidigital number, since it uses as much as digits as its factorization.

78112101969233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 53.

The spelling of 78112101969233 in words is "seventy-eight trillion, one hundred twelve billion, one hundred one million, nine hundred sixty-nine thousand, two hundred thirty-three".