80510018 has 16 divisors (see below), whose sum is σ = 124122240. Its totient is φ = 39144336.

The previous prime is 80509969. The next prime is 80510041. The reversal of 80510018 is 81001508.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80509975 and 80510002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18596 + ... + 22512.

It is an arithmetic number, because the mean of its divisors is an integer number (7757640).

Almost surely, 2^80510018 is an apocalyptic number.

80510018 is a deficient number, since it is larger than the sum of its proper divisors (43612222).

80510018 is a wasteful number, since it uses less digits than its factorization.

80510018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4201.

The product of its (nonzero) digits is 320, while the sum is 23.

The square root of 80510018 is about 8972.7374864085. The cubic root of 80510018 is about 431.8006660677.

The spelling of 80510018 in words is "eighty million, five hundred ten thousand, eighteen".