80494911 has 16 divisors (see below), whose sum is σ = 136288000. Its totient is φ = 45996984.

The previous prime is 80494907. The next prime is 80494913. The reversal of 80494911 is 11949408.

80494911 is a `hidden beast` number, since 80 + 494 + 91 + 1 = 666.

It is not a de Polignac number, because 80494911 - 2² = 80494907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80494913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212761 + ... + 213138.

It is an arithmetic number, because the mean of its divisors is an integer number (8518000).

Almost surely, 2^80494911 is an apocalyptic number.

80494911 is a deficient number, since it is larger than the sum of its proper divisors (55793089).

80494911 is a wasteful number, since it uses less digits than its factorization.

80494911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425915 (or 425909 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 80494911 is about 8971.8956190986. The cubic root of 80494911 is about 431.7736565067.

The spelling of 80494911 in words is "eighty million, four hundred ninety-four thousand, nine hundred eleven".