80678011 has 2 divisors, whose sum is σ = 80678012. Its totient is φ = 80678010.

The previous prime is 80677999. The next prime is 80678021. The reversal of 80678011 is 11087608.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80678011 - 2¹³ = 80669819 is a prime.

It is a super-2 number, since 2×80678011² = 13017882917832242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80678021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40339005 + 40339006.

It is an arithmetic number, because the mean of its divisors is an integer number (40339006).

Almost surely, 2^80678011 is an apocalyptic number.

80678011 is a deficient number, since it is larger than the sum of its proper divisors (1).

80678011 is an equidigital number, since it uses as much as digits as its factorization.

80678011 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 80678011 is about 8982.0939095514. The cubic root of 80678011 is about 432.1007905972.

The spelling of 80678011 in words is "eighty million, six hundred seventy-eight thousand, eleven".