78086011 has 2 divisors, whose sum is σ = 78086012. Its totient is φ = 78086010.

The previous prime is 78085999. The next prime is 78086033. The reversal of 78086011 is 11068087.

It is a weak prime.

It is an emirp because it is prime and its reverse (11068087) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78086011 - 2¹³ = 78077819 is a prime.

It is a super-2 number, since 2×78086011² = 12194850227784242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78086111) 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, 39043005 + 39043006.

It is an arithmetic number, because the mean of its divisors is an integer number (39043006).

Almost surely, 2^78086011 is an apocalyptic number.

78086011 is a deficient number, since it is larger than the sum of its proper divisors (1).

78086011 is an equidigital number, since it uses as much as digits as its factorization.

78086011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 78086011 is about 8836.6289386847. The cubic root of 78086011 is about 427.4228599000.

The spelling of 78086011 in words is "seventy-eight million, eighty-six thousand, eleven".