78286810767 has 8 divisors (see below), whose sum is σ = 113871724800. Its totient is φ = 47446551960.

The previous prime is 78286810753. The next prime is 78286810781. The reversal of 78286810767 is 76701868287.

It is an interprime number because it is at equal distance from previous prime (78286810753) and next prime (78286810781).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78286810767 - 2⁴ = 78286810751 is a prime.

It is a super-2 number, since 2×78286810767² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78286810767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78286810747) 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 in 7 ways as a sum of consecutive naturals, for example, 1186163767 + ... + 1186163832.

It is an arithmetic number, because the mean of its divisors is an integer number (14233965600).

Almost surely, 2^78286810767 is an apocalyptic number.

78286810767 is a deficient number, since it is larger than the sum of its proper divisors (35584914033).

78286810767 is a wasteful number, since it uses less digits than its factorization.

78286810767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372327613.

The product of its (nonzero) digits is 12644352, while the sum is 60.

The spelling of 78286810767 in words is "seventy-eight billion, two hundred eighty-six million, eight hundred ten thousand, seven hundred sixty-seven".