78289122953807 has 2 divisors, whose sum is σ = 78289122953808. Its totient is φ = 78289122953806.

The previous prime is 78289122953653. The next prime is 78289122953861. The reversal of 78289122953807 is 70835922198287.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78289122953807 - 2⁸ = 78289122953551 is a prime.

It is a super-2 number, since 2×78289122953807² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78289122953507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39144561476903 + 39144561476904.

It is an arithmetic number, because the mean of its divisors is an integer number (39144561476904).

Almost surely, 2^{78289122953807} is an apocalyptic number.

78289122953807 is a deficient number, since it is larger than the sum of its proper divisors (1).

78289122953807 is an equidigital number, since it uses as much as digits as its factorization.

78289122953807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243855360, while the sum is 71.

The spelling of 78289122953807 in words is "seventy-eight trillion, two hundred eighty-nine billion, one hundred twenty-two million, nine hundred fifty-three thousand, eight hundred seven".